Zircon Value

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Red - Fine Color Red: oR 5/4

1 to 5 carats
Red
to /ct

Blue - Fine Color Blue: vstgB 5/4

1 to 5 carats
Blue
to /ct
5 carats plus
Blue
to /ct

Green - Fine Color Green: slyG 5/3

1 to 5 carats
Green
to /ct
5 carats plus
Green
to /ct

Green - Fine Color Green: slyG 5/3

1 to 5 carats
Green
to /ct
5 carats plus
Green
to /ct

Yellow to Orange (Sold as "Gold") - Fine Color Yellow to Orange: rO 4/4

.5 to 1 carat
Yellow to Orange (Sold as "Gold")
/ct
1 to 20 carats
Yellow to Orange (Sold as "Gold")
to /ct

Other Colors

1 carat plus
Other Colors
to /ct

Cat’s Eye

All Sizes
Blue
/ct
Accompanying value information:
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The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.

Zircons come in many colors, but blue is perhaps the most popular and expensive. However, almost all blue zircon is heat treated.

blue oval brilliant cut zircon gems - Cambodia

These matched blue oval brilliant-cut zircons have been heat treated. 3.62 ctw, 5.8 x 4.2 mm, Cambodia. © The Gem Trader. Used with permission.

Green is the rarest natural color.

green zircon - cushion cut

Bright green cushion-cut zircon, 5.61 cts. © All That Glitters. Used with permission.

To learn more about zircon quality factors, consult our zircon buying guide.

Faceted zircon gems 2 - Cambodia and Sri Lanka

Zircon: Sri Lanka (19.03, 17.43, 14.20, 9.26 // 4.36, 11.26, 15.70), Cambodia (5.56) // Sri Lanka (8.92, 16.63, 7.77, 5.34). Photo © Joel E. Arem, PhD, FGA. Used with permission.