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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1577): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4294621 pcs
0.64ct Opal
8.02mm x 6.10mm x 2.84mm
USD 17.92
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ID: 3303114 pcs
3.23ctw Chocolate Opal
7.97mm x 6.06mm x 3.74mm
USD 96.90
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ID: 3832021 pcs
0.85ct Fire Opal
8.08mm x 5.83mm x 3.89mm
USD 27.22
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ID: 4207131 pcs
4.43ct Opal Doublet
16.04mm x 10.04mm x 2.61mm
USD 70.88
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ID: 2408211 pcs
6.63ct Boulder Opal
18.57mm x 10.78mm x 4.53mm
USD 46.41
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ID: 3695781 pcs
3.89ct Fire Opal
12.47mm x 10.06mm x 6.47mm
USD 126.15
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ID: 3686982 pcs
1.68ctw Opal
7.97mm x 6.06mm x 3.44mm
USD 45.95
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ID: 4312731 pcs
0.76ct Opal
6.29mm x 4.11mm
USD 15.20
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ID: 4206811 pcs
9.90ct Boulder Opal
17.72mm x 14.03mm x 5.08mm
USD 59.40
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ID: 3219221 pcs
28.03ct Boulder Opal
27.22mm x 19.56mm x 6.87mm
USD 196.21
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ID: 3702681 pcs
2.54ct Fire Opal
10.36mm x 8.86mm x 6.36mm
USD 114.30
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ID: 39160820 pcs
3.87ctw Opal Doublet
5.16mm x 3.17mm x 1.92mm
USD 65.05
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ID: 3686992 pcs
1.42ctw Opal
7.98mm x 6.16mm x 2.89mm
USD 38.84
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ID: 3080971 pcs
2.19ct Opal
12.27mm x 9.21mm x 6.13mm
USD 94.17
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ID: 4051931 pcs
1.92ct Fire Opal
11.13mm x 8.61mm x 5.23mm
USD 45.14
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ID: 3690901 pcs
1.23ct Opal
10.00mm x 6.98mm x 4.22mm
USD 33.37
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ID: 3140781 pcs
5.30ct Opal
22.43mm x 11.89mm x 3.54mm
USD 212.00
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ID: 3459931 pcs
0.97ct Opal
8.99mm x 6.99mm x 4.22mm
USD 38.80
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ID: 3430791 pcs
1.86ct Opal
10.66mm x 7.96mm x 5.81mm
USD 83.70
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ID: 4321091 pcs
0.65ct Opal
6.67mm x 5.52mm x 3.90mm
USD 18.20
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ID: 4206751 pcs
11.21ct Boulder Opal
17.95mm x 13.59mm x 5.71mm
USD 67.26
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Opal
More than any other gem, each opal is distinctly an individual. No other stone has as rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to ensure their health and longevity.

Opal's fire was long thought to be the result of iridescence. However, with the advent of scanning electron microscopes, we now know that it is a result of diffraction.

Opal is relatively soft, with a rating of 5.5-6.5 on the Mohs scale. Despite its frequent use in rings, opal is a poor choice for a ring stone; it is much better suited to earrings, pins, and pendants.

Major suppliers include Australia, Brazil, Mexico, and the US. Values are normally determined by the presence and nature of color flashes.
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39340503

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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart