Color Change Garnet Value, Price, and Jewelry Information


Fancy Elongated Hexagon Cut Color Change Garnet
Fancy Elongated Hexagon Cut Color Change Garnet by Daniel Stair

Color change garnets are mostly pyrope and spessartite in composition. Except for the color change, they are identical in properties to the Malaia variety. Their primary source is Africa.

Color Change Garnet Value

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Garnet Value via Gem Price Guide
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

See the entire Gem Price Guide.

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Color Change Garnet Information

DataValue
NameColor Change Garnet
Is a Variety ofGarnet
Crystallography Isometric.
Refractive Index 1.74-1.78
Colors Various shades of red, pink, purplish red, reddish orange, red-orange, orange, brownish orange, yellowish orange, greenish, greenish yellow-brown, peach, purple, blue (very rare under artificial light), blueish green, violet. Many possible color change combinations.
Luster Vitreous.
Polish Luster Vitreous.
Fracture Conchoidal
Hardness 6.5 - 7.5
Specific Gravity 3.75-4.0
Birefringence None.
Cleavage None
Dispersion 0.022-0.027
Transparency Transparent to opaque.
Absorption Spectrum Absorption bands are always visible at 4100, 4210, and 4300 that may merge to form a cutoff at 4350. There may also be absorption bands at 4600, 4800, 5040, 5200, and 5370.
Phenomena Color change.
Birthstone January
Pleochroism None.
Optics Isotropic.

Any gem that changes color is a rare find and a treat for collectors. Garnets exhibit the widest variety of color changes in the gem world, with almost every hue exhibited.

It is commonly said that garnets come in every color of the rainbow except blue. This is still true in natural light, but there are recent discoveries of garnets that turn blue in artificial light.

Color change garnets are mostly pyrope and spessartite in composition. Except for the color change, they are identical in properties to the Malaia variety. Their primary source is Africa.

Idaho garnets, which are primarily almandine/pyrope mixtures, occasionally show a strong color shift from red to purplish red.