Gem Price Guide


Step 6: Appraising

Lesson 3

This is a guide to gem values based upon qualitative evaluations of things like, cut clarity, and color. Those evaluations are inherently subjective, and therefore the values/prices derived from those evaluations are also subjective. Each market participant perceives the cut, clarity, and color of a given gem differently. Realize that buyers and seller often disagree about the quality of a given gemstone, and the price or value of a gem is what one willing buyer and one willing seller can actually agree upon. These values are just a guide. Color descriptions are listed for many gems. If you need help understanding them, see What Does the GIA Colored Gem Grading Code Mean. For a more detailed discussion, see Evaluating Color – hue, tone, and saturation.

The values in our guide come from a variety of sources including primary and secondary gemstone dealers, jewelers, miners, and wholesale suppliers of commonly traded gemstones. You should keep in mind that gems are sold outside these price ranges every day. Prices listed are retail. Wholesale is generally one third of retail. High-end gems are often marked up 30% or less, while low-priced more “commercial quality” gems are often marked up considerably more.

The price your gem will sell for is based upon several factors. Quality is one of the most important factors in valuing a gem. Subtle variations in quality can make a substantial difference in the price, especially of high-end gems. Unless you are familiar with all the subtle nuances of color, cut and clarity you will not be able to accurately judge the value of a gem even with this guide.  You should consider getting an appraisal. Few people have the experience to do this accurately and that includes most jewelers. There are no laws or regulations regarding gem appraisals. Many people write appraisals that do not have the experience to arrive at an accurate value. Still others capitalize on the lack of regulation and purposely write appraisals at highly inflated values. Do not give much merit to an appraisal unless it is from a highly respected organization or a reputable gem dealer who knows market prices and deals in the gem material they are valuing.

  • Actinolite Value

    Cut Weight Price
    Cat’s Eye 1 carat /ct

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    Filed under: Actinolite
  • Agate Value

    Cabochons All Sizes
    Agate $.50 to /ct
    Fire Agate to /ct
    Blue Chalcedony to /ct

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    Filed under: Agate, Chalcedony, Fire Agate
  • Alexandrite Value

    Top Color: G 5/2 and R or slpR 5/3
    Faceted to .5 carat .5 to 1 carat 1 carat plus
    Top Red/Green to /ct to /ct to ,000/ct
    Medium Red/Green to to /ct to ,000/ct
    Slight Red/Green to /ct to /ct
     
    Cabochons .3 to 1.5 carat 1.5 carats plus
    Strong red/green to /ct to ,000/ct
     
    Cat’s Eye All sizes
    Strong red/green to /ct

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    Filed under: Alexandrite
  • Allanite Value

    All sizes
    Faceted to /ct
    Cabochons to /ct

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    Filed under: Allanite
  • Amber Value

    Cabochons All sizes
    Faceted to /ct
    With bugs to /ct
    Plain Cabochons to /ct

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    Filed under: Amber
  • Amethyst Value

    Top Color: P, bP 7/5
    Faceted .5 to 1 carat 1 carat plus
    Siberian to /ct to /ct
    Medium to /ct to /ct
    Light to /ct to /ct
     
    Cabochons 1 carat plus
    Dark to /ct
    Medium to /ct

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    Filed under: Amethyst
  • Ammolite Value

    All sizes
    Naturals to /ct
    Doublets to /ct
    Triplets to /ct

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    Filed under: Ammolite (Ammonite)
  • Andalusite Value

    Top Color: YG 5/2 and O 5/4
    Faceted 1 to 4 carats 4 carats plus
    Top color to /ct to ,000/ct
    Medium color to /ct to /ct

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    Filed under: Andalusite
  • Anglesite Value

    Faceted 10 carat plus
    to /ct

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    Filed under: Anglesite
  • Apatite Value

    Faceted .3 to 1 carat 1 to 3 carats 3 carats plus
    “Neon Blue” to /ct to /ct to /ct
    Brazil Blue to /ct to /ct to /ct
    Blue Cat’s Eye 3 carats plus
    to /ct
    OTHER COLORS
    Faceted All sizes
    to /ct

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    Filed under: Apatite
  • Apophyllite Value

    Faceted 3 to 10 carats
    to /ct

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    Filed under: Apophyllite
  • Aquamarine Value

    Top Color: GB 4/4
    Faceted .5 to 1.5 carats 1.5 to 3 carats 3 carat plus
    Dark to /ct to /ct to /ct
    Medium to /ct to /ct to /ct
    Light to /ct to to /ct
    Cabochons All Sizes
    Plain to /ct
    Cat’s Eye to /ct

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    Filed under: Aquamarine, Beryl
  • Aragonite Value

    Faceted 5 carats plus
    to /ct

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    Filed under: Aragonite
  • Axinite Value

    Faceted 1 to 5 carats
    to /ct

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    Filed under: Axinite
  • Azurite Value

    Cabochons All sizes
    to /ct

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    Filed under: Azurite
  • Barite Value

    Faceted 1 carat plus
    Yellow to /ct
    Colorless to /ct

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    Filed under: Barite
  • Benitoite Value

    Faceted .1 to .5 carats .5 to 1 carat 1 carat plus
    to /ct to /ct to ,000/ct

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    Filed under: Benitoite
  • Beryl Value

    Red .1 to 1 carat 1 carat plus
    to ,000/ct to ,000/ct
    Fine Color Morganite: slpR 3/4
    Morganite 1 to 10 carats 10 carat plus
    to /ct to /ct
    Fine Color Yellow: Y 4/4
    Gold & Yellow 1 to 10 carats 10 carat plus
    to /ct to /ct
    Fine Color Green: slyG 4/3
    Green 1 to 20 carats 20 carats plus
    to /ct to /ct
    Goshenite All sizes
    to /ct

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  • Brazilianite Value

    Faceted 1 carat plus
    to /ct

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    Filed under: Brazilianite
  • Bytownite Value

    Faceted 1 to 3 carats
    TO /ct

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    Filed under: Bytownite, Feldspar
  • Calcite Value

    Faceted 5 to 100 carats
    to /ct

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    Filed under: Calcite
  • Celestine Value

    Faceted All sizes
    to /ct

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    Filed under: Celestine
  • Celestite Value

    Faceted All sizes
    to /ct

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    Filed under:
  • Cerussite Value

    Faceted 5 carats plus
    to /ct

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    Filed under: Cerussite
  • Chambersite Value

    Faceted .10 carats plus
    to /ct

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    Filed under: Chambersite
  • Chrysoberyl Value

    Top Color: styG, YG, gY 3/4
    Faceted 1 to 7 carats
    Color Change to ,000/ct
    Fine Green to /ct.
    Bright Yellow to /ct
    Brownish Yellow to /ct
    Cat’s Eye All sizes
    /ct to /ct

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    Filed under: Alexandrite, Chrysoberyl
  • Chrysocolla Value

    Sillicated All sizes
    Solid Color to /ct
    Parrot Wing /ct

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    Filed under: Chrysocolla
  • Chrysoprase Value

    Cabochons All sizes
    to /ct

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    Filed under: Chalcedony, Chrysoprase
  • Cinnabar Value

    Cabochons All sizes
    to /ct

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    Filed under: Cinnabar
  • Citrine Value

    Top Color: O 6/4
    Faceted .5 to 1 carat 1 carat plus
    Madeira to /ct
    Orange to /ct to /ct
    Yellow to to /ct
    Gold to to /ct
    Cabochons .5 to 1 carat 1 carat plus
    Yellow to Orange to /ct to /ct

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    Filed under: Citrine
  • Colored Diamonds Value

    Black Diamonds .6 - .10 carats .10 - .24 carats .25 to .33 carats .35 to .50 carats .51 to .74 carats 1 carat +
    – 120/ct - /ct - /ct - /ct - /ct - /ct
    Note: these prices are for natural black diamonds. Most black diamonds on the market are treated to color. Their value is in the tens of dollars per carat.
    Brown Diamonds .33 to .9 carats 1 to 1.5 carats
    VS2 /ct to /ct
    SI2 /ct to /ct
    I1 to /ct to /ct
    Natural Fancy Colors .1 to .99 carats 1 carat plus
    Yellow/Brown to /ct
    Yellow SI to I1 to /ct
    Yellow SI1 to VVS2 to ,000/ct to /ct
    Orange SI1 to I1 to /ct
    Irridated Fancy Colors .1 to .99 carats 1 carat plus
    Yellow SI1 to I1 to /ct to /ct
    Green SI1 to /ct to /ct
    Blue SI1 to /ct to /ct
    Pink SI1 to /ct to /ct

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    Filed under: Diamond
  • Conch Pearls Value

    All sizes
    to ,000/ct

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  • Coral Value

    Cabochons All sizes
    Red to /ct
    Deep Pink to /ct
    Light Pink to /ct

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    Filed under: Coral
  • Crocoite Value

    Faceted 5 to 10 carats
    to /ct

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    Filed under: Crocoite
  • Cuprite Value

    Faceted 4 carats plus
    to /ct

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    Filed under: Cuprite
  • Danburite Value

    Faceted 1 carat plus
    Pink to /ct
    Colorless to /ct
    Other Colors to /ct

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    Filed under: Danburite
  • Datolite Value

    Faceted .5 to 1 carat 1 carat plus
    /ct to /ct

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    Filed under: Datolite
  • Diaspore Value

    Faceted 1 to 12 carats
    to /ct

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    Filed under: Diaspore
  • Diopside Value

    Chrome Diopside 1 to 2 carats 2 carats plus
    Faceted to /ct to /ct
    Black Star All sizes
    to /ct

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    Filed under: Diopside
  • Emerald Value

    Prices assume colorless clarity enhancement, (no dyes.) Average brilliancy of 40 to 60%. Add up to 20% or deduct to 10% for other cutting. Prices for emerald cuts, round, ovals and pear. Add to 10% for marquis. Top Grade: very light inclusions, vstbG 5/5; bG 5/5 or 6/5; vslbG 5/5.
    Top Grade .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to ,900/ct ,000 to ,500/ct to ,000/ct
    VS/SI to /ct to ,300/ct ,400 to ,600/ct to ,500/ct
    SI/I to /ct to /ct to /ct to ,000/ct
    Very Good Grade: very light to moderate inclusions, vstbG 6/5; bG 5/5, 4/5 or 6/4; vslbG 5/5, 6/5.
    Very Good Grade .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to ,100/ct ,400 to ,100/ct to ,000/ct
    VS/SI to /ct to /ct to ,000/ct to ,600/ct
    SI/I to /ct to /ct to /ct to /ct
    Good Grade: very light to moderate inclusions, vstbG 4/5, 5/4, 6/4; bG 3/5, 4/4, 5/3, 6/3, 7/4; vslbG 3/5, 4/4, 4/5, 5/3, 6/4; G 4/5, 5/4,5/5, 6/5.
    Good Grade .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to ,000/ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct
    Fair Grade: moderate to prominent inclusions, vstbG 3/5, 4/4, 7/4; bG 3/4, 4/3, 7/3: vslbG 3/4, 6/3, 7/3, 7/4; G 3/5, 4/4, 5/3, 6/4.
    Fair Grade .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to /ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct
    Cat’s Eye .25 to 10 carats
    Medium to Dark to ,500/ct
    Trapiche Emeralds All sizes
    to /ct
    Cabochons .75 to 5 carats
    Medium to Dark to ,600/ct

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    Filed under: Beryl, Emerald
  • Enstatite Value

    Faceted All sizes
    to /ct

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    Filed under: Enstatite
  • Epidote Value

    Faceted All sizes
    to /ct

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    Filed under: Epidote
  • Fluorite Value

    Faceted All sizes
    $.50 to /ct

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    Filed under: Fluorite
  • Garnet Value

    Top Color: oR, R, PR, rP 6/4
    Almandine All sizes
    to /ct
    Fine Color Andradite: G 5/4
    Andradite All sizes
    to /ct
    Chrome Pyrope All sizes
    to /ct
    Color Change .5 to 1 carat 1 to 6 carats
    Africa to /ct to /ct
    US to /ct to /ct
    Demantoid to 1 carat 1 to 3 carats
    to /ct to ,000/ct
    Grossular Garnet .5 to 1 carat 1 to 5 carats 5 carats plus
    Mint Green (Merelani) to /ct to /ct to /ct
    Yellow/Orange to /ct to /ct to /ct
    Yellow/Green to /ct to /ct to /ct
    Other colors /ct /ct to /ct
    Fine Color Hessonite: yO 4/5
    Hessonite Garnet All sizes
    to /ct
    Malaya Garnet .5 to 1 carat 1 to 5 carats 5 carats plus
    to /ct to /ct to /ct
    Mozambique All sizes
    to /ct
    Mali Garnet All sizes
    to /ct
    Fine Color Spessartite: O 4/5
    Mandarin Orange All sizes
    to /ct
    Fine Color Pyrope: R 6/5
    Pyrope 1 carat plus
    /ct
    Fine Color Rhodolite: rP, PR 6/5
    Rhodolite .5 to 1 carat 1 to 10 carats 10 carats plus
    Faceted to /ct to /ct to /ct
    Cabochons to /ct to /ct to /ct
    Spessartite Reds See Mandarin above .5 to 3 carats 3 to 6 carats
    Little 3 Mine to /ct to /ct
    African to /ct to /ct
    Darker reds to /ct
    Star Garnet All sizes
    6 ray star to /ct
    4 ray star to /ct
    Fine Color Tsavorite: G 6/5
    Tsavorite .5 to 1 carat 1 to 2 carats 2 carats plus
    Faceted to /ct to /ct to ,000/ct
    Uvarovite 10 carats plus
    Druzy to /ct
    Cabochons All Sizes
    Common red to purple to /ct

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  • Gold In Quartz Value

    Cabochons All sizes
    to /ct.

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    Filed under: Quartz
  • Iolite Value

    Top Color: slvB 5/4
    Faceted Under 1 carat 1 to 3 carats 3 carats plus
    to /ct to /ct to /ct
    Colorless All sizes
    to /ct
    Cabochons Under 1 carat 1 carat plus
    to /ct to /ct

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    Filed under: Iolite
  • Kunzite Value

    Faceted 1 to 10 carats 10 carats plus
    to /ct to /ct

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    Filed under: Kunzite
  • Lapis Lazuli Value

    Cabochons All sizes
    to /ct

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    Filed under: Lapis Lazuli
  • Malachite Value

    Cabochons All sizes
    to /ct

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    Filed under: Malachite
  • Moissanite Value

    Faceted .5 to 1 carat over 1 carat
    Colorless to /ct to /ct
    Green to /ct to /ct

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    Filed under: Moissanite
  • Moldavite Value

    Faceted All sizes
    to /ct

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    Filed under: Moldavite
  • Moonstone Value

    Rainbow Moonstone (Peristerite) .5 to .99 carats 1 to 7 carats
    Cabochons to /ct to /ct
    Labradorite 10 to 30 carats
    Cabochons to /ct
    White, including cat's eyes All sizes
    to /ct
    White – Adularescent All sizes
    to /ct
    Other Colors All sizes
    to /ct

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  • Opal Value

    Black Opal, tone N1 to N4
    Carat Weight Below commercial Commercial Good Fine Extra fine
    1 to 5 - /ct - /ct - ,400/ct ,400 - ,000/ct ,000 - ,000/ct
    5 to 10/ct - /ct - /ct - ,400/ct ,400 - ,000/ct ,000 - ,000/ct
    10 + - /ct - /ct - ,400/ct ,400 - ,400/ct ,400 - ,000/ct
    Dark Opal, tone N5 to N6
    Carat Weight Below commercial Commercial Good Fine Extra fine
    1 to 5 - /ct - /ct - ,200/ct ,200 - ,000/ct ,000 - ,000/ct
    5 to 10/ct - /ct - /ct - ,200/ct ,200 - ,000/ct ,000 - ,000/ct
    10 + - /ct - /ct - ,200/ct ,200 - ,600/ct ,600 - ,400/ct
    Light Opal, tone N7 to N9
    Body Tone Below commercial Commercial Good Fine Extra fine
    N7 - /ct - /ct - /ct - ,000/ct ,000 - ,400/ct
    N8 - /ct - /ct - /ct - /ct - ,200/ct
    N9 - /ct - - /ct - /ct - /ct
    Crystal Opal
    Carat Weight Below commercial Commercial Good Fine Extra fine
    1 to 5 - /ct - /ct - /ct - ,000/ct ,000 - ,000/ct
    5 to 10/ct - /ct - /ct - /ct - ,000/ct ,000 - ,400/ct
    10 + - /ct - /ct - /ct - ,000/ct ,000 - ,000/ct
    Boulder and Matrix Opal
    Carat Weight Below commercial Commercial Good Fine Extra fine
    1 to 5 - /ct - /ct - /ct - /ct - /ct
    5 to 10/ct - /ct - /ct - /ct - /ct - /ct
    10 to 15 - /ct - ,20/ct - /ct - /ct - /ct
    15 + - /ct - /ct - /ct - /ct - /ct
    Composite Opals Doublets prices are usually 15% to 35% of the value of similar looking natural, (solid,) gem. However, they occasionally run as high as 50% of a natural opal if they are of exceptional quality. Triplets are only about 1% of the value of an equivalent natural and peak at .
    Contra Luz All sizes
    to /ct
    Fire Opals, faceted .4 to 1 carat 1 to 5 carats 5 carats plus
    to /ct to /ct to /ct
    Fire Opals, Cabochons .4 to 2 carats 2 to 10 carats
    Solid to /ct to /ct
    In Matrix to /ct
    Pink Opal All sizes
    /ct

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    Filed under: Opal
  • Oregon Sunstone Value

    See the Oregon Sunstone Buying Guide for even for more information.
    Schiller
    • Color Intensity: Light, medium, deep
    • Color Range: Clear, gold, peach, coral, orange, red, green
    • Transparency: Translucent to Opaque
    The price range is consistently between - per carat regardless of size or color.
    Clear Hues
    • Color Intensity: Light
    • Color Range: Clear, gold, peach, coral, pink, red, green, blue
    • Transparency: Transparent
    Price Per Carat Clear Peach Pink Light Blue Green
    Up to 2.5 cts
    2.5-5 cts
    5-7 cts
    7 cts
    Mid-Deep Tones
    • Color Intensity: Medium to deep
    • Color Range: Strong Peach, orange, red, green, blue
    • Transparency: Transparent
    Price Per Carat Med Red Orange Red Blue Green
    Up to 2.5 cts
    2.5-5 cts
    5-7 cts
    7 cts
    Constellation, AKA Aventurescent
    • Color Intensity: Medium to deep
    • Color Range: Strong peach, orange, red, green, blue
    • Transparency: Transparent
    Price Per Carat Mid to Deep Color Constellation
    Up to 2.5 cts
    2.5-5 cts
    5-7 cts
    7 cts
    Two Tone – Dichroic
    • Color Intensity: Medium to deep
    • Color Range: Strong peach, orange, red, green, blue
    • Transparency: Transparent
    Price Per Carat Light Dichroic Med Dichroic Deep Dichroic
    Up to 2.5 cts
    2.5-5 cts
    5-7 cts
    7 cts
    Classic Sunstone
    • Color Intensity: Combination of light-medium or light-deep
    • Color Range: Gold, peach, coral, pink, red, green, blue
    • Transparency: Transparent
    Note: There was a limited sampling of larger sized stones, which may affect pricing accuracy.
    Price Per Carat Light Classic Pink/Peach Classic Mid to Deep Red Classic Blue/Green
    Up to 2.5 cts
    2.5-5 cts
    5-7 cts
    7 cts
    Mystique
    • Color Intensity: Light, medium, deep
    • Color Range: Gold, peach, coral, pink, red, green, blue
    • Transparency: Transparent
    Price Per Carat Med-Deep Mystique
    Up to 2.5 cts
    2.5-5 cts ,226.00
    5-7 cts
    7 cts

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  • Peridot Value

    Top Color: yG 5/4
    Faceted .5 to 1 carat 1 to 3 carats 3 carats plus
    Eye Clean to /ct to /ct to /ct

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  • Phenakite Value

    Faceted All sizes
    to /ct

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    Filed under: Phenakite
  • Quartz Value

    Smoky Quartz All sizes
    Faceted to /ct
    Rose Quartz All sizes
    Faceted to /ct
    Rutilated & Tourmalated Quartz All sizes
    Faceted to /ct
    Cabochons /ct
    Quartz with Lepidocrite All sizes
    Faceted or cabochon to /ct
    Star Quartz All sizes
    to /ct

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  • Rhodochrosite Value

    Faceted All sizes
    Colorado to /ct
    African to /ct
    Cabochons All sizes
    Bulls eye to /ct
    Plain to /ct

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    Filed under: Rhodochrosite
  • Ruby Value

    Burma Rubies

    Certified origin. Untreated material. Average brilliancy of 30 to 40%. Add up to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 7% to 10% for rounds, pears, marquis. Add 15% to30% for emerald cuts. Top Color: R 6/6 No trade data available. As of May 2015, the record price for a ruby is approximately 2 million per carat. ( million for a 25.59 carat Mogok "pigeon's blood" ruby). Very Good Color: R 5/6, 7/5; slpR 5/6, 6/6, 7/5; stpR 6/6.
    Very Good Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to ,500/ct ,000 to ,000/ct to ,000/ct
    VS/SI to /ct to ,600/ct ,000 to ,500/ct to ,000/ct
    SI/I to /ct to /ct to ,000/ct to ,000/ct
    Good Color: R 6/5; slpR 6/5; stpR 5/6
    Good Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to ,000/ct to ,000/ct
    VS/SI to /ct to /ct to ,800/ct to ,000/ct
    SI/I to /ct to /ct to ,700/ct to ,000/ct
    Fair Color: R 5/5, 6/4, 7/4; slpR 5/5, 6/4, 7/4.
    Fair Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to ,000/ct
    VS/SI to /ct to /ct to /ct to ,000/ct
    SI/I to /ct to /ct to /ct to ,000/ct

    Other Rubies

    Heat treated material. Average brilliancy of 40 to 60%. Add up to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 7% to 10% for rounds, pears, marquis. Add 15% to 30% for emerald cuts. Top Color: R 6/6 No trade data available. Very Good Color: R 5/6, 7/5; slpR 5/6, 6/6, 7/5; stpR 6/6.
    Very Good Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to ,400/ct to ,500/ct
    VS/SI to /ct to /ct to ,350/ct to ,200/ct
    SI/I to /ct to /ct to /ct to ,500/ct
    Good Color: R 6/5; slpR 6/5; stpR 5/6.
    Good Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to ,400/ct
    VS/SI to /ct to /ct to /ct to ,800/ct
    SI/I to /ct to /ct to /ct to ,200/ct
    Fair Color: R 5/5, 6/4, 7/4; slpR 5/5, 6/4, 7/4.
    Fair Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to ,500/ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct
    Cabochons .5 to 1 carat over 3 carats
    to /ct to /ct
    Star Ruby .5 to 1 carat 1 to 2 carats 3 to 6 carats
    Near top color to /ct to /ct
    Indian Rubies All sizes
    to .ct

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  • Sapphire Value

    Kashmir Sapphire

    Certified origin. Untreated material. Average brilliancy of 40 to 60%. Add to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 8% to 10% for rounds and pears. Add 10% to 20% for emeralds and marquis. Top Grade: vB 5/6, 6/6. B 5/6, 6/6.
    Top Grade 1 to 2 carats 2 to 3 carats 3 to 4 carats 4 carats plus
    VVS ,000 to ,650/ct ,000 to ,000/ct ,000 to ,500/ct to ,000/ct
    VS/SI ,000 to ,000/ct ,000 to ,700/ct ,000 to ,000/ct to ,000/ct
    SI/I ,000 to ,000/ct ,000 to 24,600/ct ,000 to 27,600/ct to ,000/ct
    Very Good Grade: V 4/6, 5/6, 6/5. bV 5/6, 6/6; vB 5/5, 4/6, 6/5.
    Very Good Grade 1 to 2 carats 2 to 3 carats 3 to 4 carats 4 carats plus
    VVS ,000 to ,300/ct ,600 to ,400/ct ,000 to ,000/ct to ,000/ct
    VS/SI to ,100/ct ,000 to ,700/ct ,000 to ,000/ct to ,500/ct
    SI/I to ,300/ct ,000 to ,000/ct ,400 to ,600/ct to ,500/ct
    Good Grade: V 4/5, 5/4, 5/5, 6/4, 6/5, 7/5; bV 4/5, 4/6, 5/4, 5/5, 5/4, 4/5; vB 3/5, 4/4, 6/3, 7/5, 5/4, 4/5; B 3/5, 4/4, 6/3, 7/5, 6/4, 5/4, 4/5.
    Good Grade 1 to 2 carats 2 to 3 carats 3 to 4 carats 4 carats plus
    VVS to ,200/ct to ,700/ct ,000 to ,000/ct to ,000/ct
    VS/SI to /ct to ,200/ct ,000 to ,000/ct to ,000/ct
    SI/I to /ct to ,500/ct ,000 to ,000/ct to ,900/ct
    Fair Grade: V 3/4, 3/5, 4/4, 4/3, 5/3, 6/3, 7/4; bV 3/5, 4/4, 5/3, 6/3, 7/4, 7/5; vB 3/4, 4/3, 7/4, 6/2, 5/3; B 3/4, 4/3, 7/4 6/2, 5/2, 5/3.
    Fair Grade 1 to 2 carats 2 to 3 carats 3 to 4 carats 4 carats plus
    VVS to /ct to ,200/ct to ,500/ct to ,500/ct
    VS/SI to /ct to /ct to ,000/ct to ,000/ct
    SI/I to /ct to /ct to ,500/ct to ,700/ct

    Other Blue Sapphires

    Heat treated material. Average brilliancy of 40% to 60%. Add to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 8% to 10% for rounds and pears. Add 10% to 20% for emeralds and marquis. Note: If certified Burmese and untreated, add 50%, except fair or lower grades. Top Grade: vB 5/6, 6/6; B 5/6, 6/6.
    Top Grade 1 to 2 carats 2 to 3 carats 3 to 4 carats 4 carats plus
    VVS to /ct to /ct to /ct to ,500/ct
    VS/SI to /ct to /ct to /ct /ct
    SI/I to /ct to /ct to /ct /ct
    Very Good Grade: V 4/6, 5/5, 6/6; bV 5/6, 6/7; vB 5/5, 4/6, 6/5; B 4/6, 5/5, 6/5; vslgB 4/6, 5/6, 6/6.
    Very Good Grade .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to /ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct
    Good Grade: V 4/5, 5/4, 5/5, 6/4, 6/5, 7/5; bV 4/5, 4/6, 5/4, 5/5, 6/4, 6/5; vB 3/5, 4/4, 6/3, 7/5, 5/4, 4/5; B 3/5, 4/4, 6/3, 7/5, 6/4, 6/4, 5/4, 4/5; vslgB 7/5, 5/4, 6/4, 4/5, 6/5, 5/5; gB 4/5, 5/5, 6/5.
    Good Grade .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to /ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct
    Fair Grade: V 3/4, 3/5, 4/3, 4/4, 5/3, 6/3, 7/4; bV 3/5, 4/4, 5/3, 6/3, 7/4, 7/5; vB 3/4, 4/3, 6/2, 7/4, 5/3; B 3/4, 4/3, 7/4, 6/2, 5/2, 5/3; vslgB 3/4, 3/5, 4/3, 4/4, 5/3, 6/3, 7/4; gB 3/5, 4/4, 5/3, 5/4, 6/3, 6/4, 7/4; vstgB 4/4, 5/4, 6/4.
    Fair Grade .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to /ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct

    Fancy Sapphires

    Average brilliancy of 30% to 40%. Add to 20% or deduct to 10% for other cutting. Prices for ovals and cushions. Add 7% to 10% for rounds, pears and marquis. Add 15% to 30% for emerald cuts.

    Pink Sapphire

    Top Color: stpR 3/6, 4/6; RP 4/6; rP 4/6 No trade data available Very Good Color: slpR 4/6; stpR 4/5; RP 3/5, 4/4, 4/5; rP 3/5, 4/4, 4/5; P 4/5.
    Very Good Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to ,500/ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct
    Good Color: slpR 3/5, 4/4, 4/5; stpR 3/4, 3/5, 4/4; RP 3/4, 4/3; rP 3/4, 4/3; P 3/4, 4/4.
    Good Color .5 to .75 carat .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct to /ct
    VS/SI to /ct to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct to /ct
    Fair Color: slpR 3/3, 4/3; stpR 3/4, 4/3; RP 2/3, 3/3; rP 2/3, 3/3; P 3/, 4/3.
    Fair Color .75 to 1 carat 1 to 2 carats 2 carats plus
    VVS to /ct to /ct to /ct
    VS/SI to /ct to /ct to /ct
    SI/I to /ct to /ct to /ct

    Yellow Sapphire

    Top Color: Y 3/5; oY 3/5. Very Good Color: Y 3/4; oY 3/4. Good Color: Y 3/3, 4/4; oY 3/3, 4/4. Fair Color: Y 2/3, 4/3; oY 2/3, 4/3.
    Yellow Sapphire to 2 carats 2 carats plus
    Top Color to /ct to /ct
    Very Good Color to /ct to /ct
    Good Color to /ct to /ct
    Fair Color to /ct to /ct

    Green Sapphire

    Top Color: vslbG 6/3, bG 6/3, G 6/3. Very Good Color: BG 6/3, vstbG 6/2, 5/3, 6/2; bG 4/3, 5/3, 6/3; vslbG 4/3, 5/3, 6/2; G 5/3, 7/3; slyG 5/3, 6/3; yG 6/3. Good Color: BG 4/3, 5/3, 6/2; vstbG 4/3, 5/3, 7/3; bG 4/2, 5/2, 7/3, G 5/2,6/2; slyG 5/2, 6/2, 7/3; yG 5/3, 6/2, 7/3; styG 5/3, 6/3; styG 5/3, 6/3. Fair Color: BG 4/2, 5/2; vstbG 4/2, 7/2; bG 3/2, 7/2; vslbG 7/2; G 4/2, 7/2; slyG 4/2, 7/2; yG 5/2, 7/3; styG 5/2, 6/2.
    Green Sapphire to 1 carat 1 carat plus
    Top Color to /ct to /ct
    Very Good Color to /ct to /ct
    Good Color to /ct to /ct
    Fair Color to /ct to /ct

    Purple Sapphire

    Top Color: RP 6/6, 5/6; rP 6/6; P 6/6. Very Good Color: stpR 5/5, 6/5; RP 5/5, 6/5, 7/5; rP 5/6, 6/5; P 5/6, 6/5; bP 5/6, 6/5. Good Color: slpR 5/3, 6/3; stpR 5/4, 6/4, 7/4; RP 5/4, 6/3, 6/4, 7/4; rP 5/4, 5/5, 6/4, 7/5; P 5/4, 5/5, 6/4, 7/5; bP 4/5, 4/6, 5/5. Fair Color: .
    Purple Sapphire to 2 carats 2 carats plus
    Top Color to /ct to /ct
    Very Good Color to /ct to /ct
    Good Color to /ct to /ct
    Fair Color to /ct to /ct

    Other Sapphires

    White Sapphire .5 to 3 carats 3 to 5 carats 5 to 15 carats
    to /ct to /ct to /ct
    Color Change Sapphire .5 to 1 carat 1 to 7 carats
    to /ct to /ct
    Blue Cabochons .5 to 1 carat 1 to 7 carats
    to /ct to /ct
    Star Sapphire .5 to 1 carat 1 to 5 carats
    Blue to /ct to /ct
    Fancy Colors to /ct to /ct
    Black to /ct to /ct

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  • Sapphirine Value

    Faceted .5 to 1 carat 1 to 5 carats
    to /ct to /ct

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    Filed under: Sapphirine
  • Scapolite Value

    Gold 1 to 3 carats 3 carats plus
    Faceted to /ct to /ct
    Purple .5 to 1 carat 1 carat plus
    Faceted to /ct to /ct
    Colorless 1 to 10 carats 10 carats plus
    Faceted to /ct to /ct
    Cat’s Eye 1 to 10 carats
    to /ct
    Star 1 carat plus
    to /ct

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    Filed under: Scapolite
  • Sphalerite Value

    Faceted 1 carat plus
    to /ct

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    Filed under: Sphalerite
  • Spinel Value

    Fine Color Blue: B 5/5
    Blue .5 to 2 carats 2 to 4 carats 4 carats plus
    Faceted to /ct to /ct to /ct
    Fine Color Red: R, slpR 5/5
    Red .2 to 1 carat 1 to 5 carats
    Faceted to /ct to ,000/ct
    Pink .5 to 1 carats 1 to 3 carats 3 carats plus
    Faceted to /ct to ,000/ct to
    Fine Color Purple: P 5/5: P, rP, bP, V 5/4
    Purple .5 to 1 carats 1 to 3 carats 3 carats plus
    Faceted to /ct to ,800/ct to ,000/ct
    Fine Color Orange: O, rO 5/5
    Other Colors .5 to 1 carats 1 to 5 carats 5 carats plus
    Faceted to /ct to /ct to ,000/ct
    Star Spinel All sizes
    to /ct

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  • Sugilite Value

    Faceted All sizes
    to /ct
    Cabochons All sizes
    to /ct

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    Filed under: Sugilite
  • Sunstone Value

    Red, Green & Bicolored .10 to .99 carats 1 to 100 carats
    SI to clean to /ct to /ct
    Peach .5 to 20 carats
    SI to clean to /ct.
    Schiller 1 carat plus
    SI to clean to /ct
    Yellow 1 carat plus
    SI to clean to /ct
    Cabochons All sizes
    Red to /ct
    Schiller to /ct

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    Filed under: Feldspar, Sunstone
  • Tanzanite Value

    Top Color: vB 6/5
    Faceted .5 to 1 carat 1 to 3 carats 5 carats plus
    SI to Clean to /ct to /ct to /ct

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    Filed under: Tanzanite
  • Titanite Value

    Faceted .5 to 1 carats 1 to 10 carats 10 to 20 carats
    to /ct to /ct to /ct

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    Filed under: Titanite
  • Topaz Value

    Top Color: oR, R 5/5
    Imperial .5 to 1 carat 1 to 3 carats 3 carats plus
    - /ct to /ct to /ct
    Pink .5 to 3 carat 3 carats plus
    to /ct to /ct
    Top Color: vslgB, gB 5/5
    Blues & Colorless .5 to 1 carat 1 carat plus
    London Blue to to /ct
    Swiss Blue to /ct to /ct
    Sky Blue to /ct to /ct
    Colorless to /ct to /ct
    Other Colors All sizes
    Faceted to /ct
    Cabochons All sizes
    Blue to /ct

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    Filed under: Topaz
  • Tourmaline Value

    Paraiba .4 to 2 carats 2 to 10 plus carats
    SI to Clean to /ct to ,000/ct
    Fine Color Blue: B 5/4
    Indicolite .4 to 2 carats 2 to 10 plus carats
    Faceted to /ct to /ct
    Cabochons to /ct
    Fine Color Red: R, slpR 6/5
    Rubellite .5 to 1 carat 1 to 5 carats 5 carats plus
    Reds to /ct to /ct to /ct
    Pinks to /ct to /ct to /ct
    Fine Color Green: vstbG, BG, vslbG 5/4
    Chrome .5 to 1 carat 1 to 5 carats
    to /ct to /ct
    Other greens .5 to 2 carats 2 to 5 carats 5 carats plus
    to /ct to /ct to /ct
    Fine Color Orange: O 4/5
    More Faceted Stones .5 to 1 carat 1 to 5 carats 5 plus carats
    Fancy Colors to /ct to /ct to /ct
    Watermelon to to /ct to /ct
    Other Multicolor to to /ct to /ct
    Cat’s Eye .5 to 1 carat 1 to 5 carats 5 plus carats
    to /ct to /ct to /ct
    Other Cabochons 1 to 5 carats 5 plus carats
    All colors to /ct to /ct

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  • Turquoise Value

    Cabochons All Sizes
    to /ct

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    Filed under: Turquoise
  • Wulfenite Value

    Faceted .5 to 1.5 carat
    to /ct

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    Filed under: Wulfenite
  • Zircon Value

    Fine Color Red: oR 5/4
    Red 1 to 5 carats
    to /ct
    Fine Color Blue: vstgB 5/4
    Blue 1 to 5 carats 5 carats plus
    to /ct to /ct
    Fine Color Green: slyG 5/3
    Green 1 to 5 carats 5 carats plus
    to /ct to /ct
    Fine Color Yellow to Orange: rO 4/4
    Yellow to Orange .5 to 1 carat 1 to 20 carats
    Sold as "Gold" /ct to /ct
    Other Colors 1 carat plus
    to /ct
    Cat’s Eye All sizes
    Blue /ct

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    Filed under: Zircon