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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1491): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3051151 pcs
2.02ct Opal
10.65mm x 9.99mm x 4.17mm
USD 66.66
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ID: 3166751 pcs
1.32ct Opal
10.08mm x 7.07mm x 4.93mm
USD 55.44
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ID: 3081271 pcs
2.15ct Opal
14.07mm x 8.82mm x 5.00mm
USD 90.30
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ID: 4222731 pcs
2.51ct Opal
12.69mm x 7.53mm x 5.73mm
USD 72.11
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ID: 4289841 pcs
0.91ct Opal
8.11mm x 6.10mm x 3.64mm
USD 25.48
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ID: 4207311 pcs
7.28ct Boulder Opal
12.43mm x 10.18mm x 6.34mm
USD 43.68
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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: 3702661 pcs
2.08ct Fire Opal
10.43mm x 7.91mm x 5.53mm
USD 93.60
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ID: 3832341 pcs
0.83ct Fire Opal
7.45mm x 3.44mm
USD 26.58
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ID: 4320471 pcs
0.63ct Opal
6.39mm x 3.48mm
USD 17.64
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ID: 3811711 pcs
3.16ct Opal Doublet
16.53mm x 10.59mm x 2.83mm
USD 57.95
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ID: 3486851 pcs
8.17ct Fire Opal
23.31mm x 12.06mm x 7.64mm
USD 408.50
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ID: 4322801 pcs
0.69ct Opal
6.54mm x 3.83mm
USD 19.32
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ID: 4323014 pcs
2.16ctw Fire Opal
6.92mm x 5.14mm x 4.10mm
USD 57.43
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ID: 3179171 pcs
0.54ct Opal
7.36mm x 5.27mm x 3.44mm
USD 22.68
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ID: 4321101 pcs
0.55ct Opal
6.66mm x 5.85mm x 3.59mm
USD 15.40
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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: 3164591 pcs
1.86ct Opal
10.32mm x 7.46mm x 6.55mm
USD 78.12
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ID: 3682972 pcs
1.43ctw Opal
8.08mm x 6.23mm x 3.39mm
USD 39.40
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ID: 3092781 pcs
0.86ct Opal
9.37mm x 5.96mm x 3.93mm
USD 36.98
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ID: 4321552 pcs
1.39ctw Fire Opal
8.03mm x 6.09mm x 3.51mm
USD 36.96
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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