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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1663): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4056941 pcs
1.34ct Fire Opal
9.49mm x 7.42mm x 5.22mm
USD 31.60
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ID: 4206801 pcs
12.77ct Boulder Opal
18.90mm x 12.93mm x 6.46mm
USD 76.62
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ID: 3212251 pcs
1.96ct Opal
10.17mm x 8.09mm x 6.03mm
USD 78.40
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ID: 3184001 pcs
1.02ct Opal
8.89mm x 6.97mm x 4.49mm
USD 42.84
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ID: 3150751 pcs
1.60ct Opal
10.16mm x 7.47mm x 6.11mm
USD 67.20
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ID: 3830491 pcs
0.95ct Fire Opal
6.69mm x 6.65mm x 4.26mm
USD 30.42
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ID: 3695172 pcs
1.73ctw Fire Opal
8.00mm x 6.01mm x 4.30mm
USD 56.10
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ID: 4289032 pcs
1.92ctw Opal
8.23mm x 6.15mm x 3.94mm
USD 53.76
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ID: 4323911 pcs
0.93ct Fire Opal
7.06mm x 5.12mm
USD 24.73
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ID: 4320352 pcs
1.46ctw Fire Opal
8.02mm x 6.07mm x 3.66mm
USD 38.82
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ID: 3693391 pcs
5.81ct Fire Opal
14.64mm x 13.74mm x 7.58mm
USD 188.42
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ID: 4321512 pcs
1.20ctw Fire Opal
8.04mm x 6.08mm x 3.28mm
USD 31.91
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ID: 3529651 pcs
2.56ct Black Opal
11.02mm x 10.49mm x 5.06mm
USD 102.40
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ID: 4206781 pcs
11.91ct Boulder Opal
23.63mm x 10.59mm x 5.57mm
USD 71.46
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ID: 3623314 pcs
2.52ctw Opal Doublet
8.09mm x 5.10mm x 2.00mm
USD 46.04
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ID: 3297844 pcs
2.54ctw Black Opal
6.99mm x 5.05mm x 3.53mm
USD 101.60
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ID: 3164581 pcs
1.59ct Opal
10.20mm x 8.07mm x 5.10mm
USD 66.78
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ID: 4052711 pcs
1.06ct Fire Opal
8.84mm x 6.88mm x 4.79mm
USD 24.92
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ID: 3702841 pcs
1.28ct Fire Opal
9.61mm x 7.30mm x 3.82mm
USD 57.60
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ID: 3219211 pcs
21.32ct Boulder Opal
27.33mm x 13.10mm x 5.82mm
USD 149.24
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ID: 3472951 pcs
0.79ct Opal
7.06mm x 6.99mm x 4.86mm
USD 33.18
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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