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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1396): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3696831 pcs
4.64ct Fire Opal
14.82 x 12.06 x 6.39mm
USD 150.48
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ID: 3022911 pcs
2.48ct Opal
13.25 x 8.98 x 4.20mm
USD 99.20
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ID: 4206331 pcs
8.17ct Boulder Opal
19.97 x 10.51 x 4.79mm
USD 49.02
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ID: 4322511 pcs
0.93ct Fire Opal
7.95 x 6.04 x 4.50mm
USD 24.73
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ID: 4223211 pcs
1.77ct Opal
10.11 x 7.43 x 5.02mm
USD 43.68
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ID: 3834921 pcs
0.85ct Fire Opal
8.14 x 6.68 x 3.84mm
USD 27.17
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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: 3111451 pcs
1.55ct Opal
11.74 x 7.43 x 5.28mm
USD 65.10
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ID: 4054221 pcs
1.60ct Fire Opal
10.26 x 7.85 x 5.57mm
USD 37.86
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ID: 2496675 pcs
3.60ctw Opal Doublet
7.93 x 5.96 x 1.64mm
USD 16.20
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ID: 3303034 pcs
4.20ctw Chocolate Opal
8.08 x 6.11 x 4.27mm
USD 126.00
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ID: 4223121 pcs
1.88ct Opal
10.26 x 7.76 x 4.95mm
USD 41.36
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ID: 4292571 pcs
0.79ct Opal
7.90 x 6.21 x 3.40mm
USD 22.12
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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: 3082071 pcs
1.33ct Opal
11.00 x 8.00 x 5.34mm
USD 57.19
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ID: 3303264 pcs
3.46ctw Chocolate Opal
8.07 x 6.08 x 3.79mm
USD 103.80
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ID: 4056661 pcs
0.90ct Fire Opal
8.79 x 6.81 x 4.23mm
USD 21.22
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ID: 3695021 pcs
1.90ct Fire Opal
10.23 x 7.47 x 5.34mm
USD 61.62
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ID: 4288922 pcs
1.91ctw Opal
7.93 x 6.00 x 4.33mm
USD 53.48
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ID: 4320282 pcs
1.03ctw Fire Opal
7.90 x 5.98 x 3.05mm
USD 27.39
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ID: 3080651 pcs
2.01ct Opal
12.81 x 8.93 x 4.88mm
USD 86.43
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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