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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1688): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3024171 pcs
5.44ct Chocolate Opal
15.67mm x 13.01mm x 6.65mm
USD 217.60
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ID: 4032761 pcs
17.20ct Opal
25.88mm x 20.20mm x 9.06mm
USD 78.95
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ID: 3094821 pcs
0.78ct Opal
8.40mm x 6.20mm x 3.61mm
USD 33.54
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ID: 4288512 pcs
1.60ctw Opal
8.04mm x 6.12mm x 3.66mm
USD 44.80
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ID: 3672164 pcs
2.85ctw Fire Opal
6.39mm x 4.16mm
USD 95.05
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ID: 3689444 pcs
2.59ctw Opal
7.79mm x 6.02mm x 3.09mm
USD 70.27
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ID: 3213461 pcs
0.92ct Opal
8.13mm x 6.11mm x 4.81mm
USD 36.80
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ID: 4323681 pcs
0.49ct Opal
5.71mm x 3.26mm
USD 13.72
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ID: 3151621 pcs
1.41ct Opal
11.33mm x 7.86mm x 4.34mm
USD 59.22
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ID: 3672374 pcs
2.88ctw Fire Opal
7.08mm x 5.37mm x 4.17mm
USD 96.05
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ID: 3698241 pcs
3.46ct Fire Opal
12.51mm x 9.94mm x 7.10mm
USD 112.21
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ID: 3032262 pcs
1.79ctw Opal Doublet
8.04mm x 5.90mm x 1.82mm
USD 44.75
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ID: 3834171 pcs
0.77ct Fire Opal
6.51mm x 4.44mm
USD 24.61
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ID: 3688091 pcs
1.85ct Opal
9.85mm x 8.24mm x 5.12mm
USD 50.60
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ID: 4320411 pcs
0.78ct Opal
6.89mm x 5.37mm x 4.13mm
USD 21.84
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ID: 3094571 pcs
0.71ct Opal
8.05mm x 5.99mm x 3.78mm
USD 30.53
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ID: 4290241 pcs
0.68ct Opal
7.87mm x 5.97mm x 3.30mm
USD 19.04
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ID: 4316041 pcs
0.55ct Opal
6.37mm x 5.56mm x 3.45mm
USD 11.00
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ID: 3243951 pcs
1.72ct Black Opal
11.55mm x 8.17mm x 4.66mm
USD 68.80
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ID: 3219281 pcs
45.15ct Boulder Opal
33.43mm x 19.84mm x 7.85mm
USD 316.05
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ID: 3460001 pcs
0.78ct Opal
8.22mm x 6.18mm x 4.43mm
USD 31.20
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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