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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1389): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 2719861 pcs
4.14ct Opal
14.76 x 9.84 x 7.44mm
USD 74.00
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ID: 3460001 pcs
0.78ct Opal
8.22 x 6.18 x 4.43mm
USD 31.20
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ID: 3243941 pcs
2.18ct Black Opal
13.15 x 9.07 x 4.42mm
USD 87.20
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ID: 3153301 pcs
1.75ct Opal
10.58 x 8.39 x 5.79mm
USD 73.50
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ID: 4294981 pcs
0.85ct Opal
7.98 x 6.09 x 3.89mm
USD 23.80
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ID: 4287952 pcs
1.68ctw Opal
8.10 x 6.01 x 4.05mm
USD 47.04
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ID: 3297995 pcs
2.67ctw Black Opal
6.98 x 4.95 x 3.19mm
USD 106.80
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ID: 3175901 pcs
4.27ct Black Opal
15.29 x 9.53 x 5.11mm
USD 170.80
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ID: 4055301 pcs
1.67ct Fire Opal
10.79 x 8.48 x 4.78mm
USD 39.51
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ID: 3671442 pcs
3.15ctw Fire Opal
8.85 x 7.18 x 5.16mm
USD 105.05
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ID: 4322431 pcs
0.74ct Fire Opal
8.02 x 6.10 x 3.88mm
USD 19.68
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ID: 3291364 pcs
4.29ctw Black Opal
8.16 x 6.17 x 4.39mm
USD 171.60
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ID: 3834231 pcs
0.84ct Fire Opal
7.16 x 3.90mm
USD 26.85
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ID: 3804011 pcs
15.79ct Fire Opal
22.26 x 14.88 x 8.89mm
USD 341.22
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ID: 3202131 pcs
1.37ct Opal
10.15 x 7.96 x 4.32mm
USD 61.65
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ID: 4320401 pcs
0.67ct Opal
6.54 x 5.81 x 3.54mm
USD 18.76
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ID: 3199591 pcs
1.26ct Opal
10.22 x 7.18 x 4.90mm
USD 56.70
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ID: 4223271 pcs
1.20ct Opal
8.10 x 6.13 x 5.06mm
USD 29.09
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ID: 4059281 pcs
0.83ct Fire Opal
9.84 x 6.03 x 4.11mm
USD 19.57
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ID: 3669171 pcs
2.28ct Fire Opal
11.05 x 8.70 x 5.08mm
USD 88.92
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ID: 3671281 pcs
1.53ct Fire Opal
10.73 x 7.37 x 4.29mm
USD 51.03
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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:
+66-39303404

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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