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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1399): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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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: 3668931 pcs
1.55ct Fire Opal
10.21 x 7.89 x 4.27mm
USD 60.45
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ID: 3166211 pcs
1.34ct Opal
10.03 x 8.09 x 4.38mm
USD 56.28
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ID: 3670371 pcs
2.13ct Fire Opal
11.42 x 8.35 x 4.88mm
USD 71.04
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ID: 4322001 pcs
0.48ct Fire Opal
6.96 x 5.06 x 3.40mm
USD 12.76
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ID: 3579131 pcs
8.91ct Opal Doublet
20.38 x 17.50 x 3.49mm
USD 57.92
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ID: 3705261 pcs
2.31ct Opal
11.88 x 9.10 x 5.94mm
USD 97.02
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ID: 4322821 pcs
0.70ct Opal
6.55 x 6.08 x 4.04mm
USD 19.60
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ID: 4323681 pcs
0.49ct Opal
5.71 x 3.26mm
USD 13.72
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ID: 4321542 pcs
1.16ctw Fire Opal
7.91 x 6.09 x 3.17mm
USD 30.84
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ID: 4288082 pcs
1.73ctw Opal
8.16 x 6.08 x 3.95mm
USD 48.44
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ID: 4319342 pcs
1.41ctw Fire Opal
7.96 x 6.15 x 3.61mm
USD 37.49
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ID: 4062151 pcs
23.74ct Opal
29.49 x 19.53 x 9.93mm
USD 83.80
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ID: 3302911 pcs
4.11ct Black Opal
16.69 x 10.84 x 5.27mm
USD 164.40
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ID: 3303254 pcs
3.00ctw Chocolate Opal
7.90 x 6.06 x 3.48mm
USD 90.00
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ID: 3689444 pcs
2.59ctw Opal
7.79 x 6.02 x 3.09mm
USD 70.27
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ID: 3148801 pcs
1.70ct Opal
10.16 x 8.09 x 5.26mm
USD 68.00
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ID: 3439271 pcs
0.87ct Opal
9.99 x 6.53 x 4.08mm
USD 34.80
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ID: 3831261 pcs
0.54ct Fire Opal
7.23 x 4.80 x 3.32mm
USD 17.29
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ID: 3212881 pcs
0.97ct Opal
8.23 x 6.19 x 4.82mm
USD 38.80
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ID: 4055221 pcs
1.36ct Fire Opal
10.16 x 7.80 x 5.22mm
USD 32.18
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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:
+66-39303404

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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