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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1685): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3672284 pcs
2.29ctw Fire Opal
5.93mm x 3.81mm
USD 76.37
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ID: 2940562 pcs
1.08ctw Opal Doublet
7.13mm x 5.01mm x 1.98mm
USD 32.40
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ID: 3834221 pcs
0.97ct Fire Opal
8.15mm x 6.19mm x 4.21mm
USD 31.00
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ID: 3801061 pcs
12.90ct Fire Opal
19.77mm x 19.01mm x 7.94mm
USD 451.50
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ID: 4321051 pcs
0.57ct Opal
7.14mm x 5.56mm x 3.52mm
USD 15.96
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ID: 4293001 pcs
0.67ct Opal
7.79mm x 5.96mm x 3.00mm
USD 18.76
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ID: 4319131 pcs
0.60ct Opal
5.77mm x 4.18mm
USD 16.80
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ID: 3830871 pcs
10.70ct Fire Opal
23.02mm x 13.14mm x 7.59mm
USD 228.44
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ID: 4291911 pcs
0.77ct Opal
7.98mm x 6.03mm x 3.39mm
USD 21.56
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ID: 4321441 pcs
0.41ct Opal
5.99mm x 4.98mm x 3.33mm
USD 11.48
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ID: 4207771 pcs
16.19ct Boulder Opal
20.35mm x 12.30mm x 7.69mm
USD 97.14
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ID: 3669101 pcs
2.02ct Fire Opal
13.83mm x 5.66mm x 3.75mm
USD 78.78
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ID: 3689485 pcs
4.79ctw Opal
8.15mm x 6.03mm x 4.02mm
USD 129.95
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ID: 3153301 pcs
1.75ct Opal
10.58mm x 8.39mm x 5.79mm
USD 73.50
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ID: 3653121 pcs
4.95ct Boulder Opal
11.31mm x 9.20mm x 5.63mm
USD 34.65
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ID: 4291831 pcs
0.71ct Opal
7.88mm x 5.88mm x 3.22mm
USD 19.88
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ID: 4321512 pcs
1.20ctw Fire Opal
8.04mm x 6.08mm x 3.28mm
USD 31.91
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ID: 4288092 pcs
1.57ctw Opal
8.18mm x 6.11mm x 3.36mm
USD 43.96
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ID: 4051991 pcs
1.68ct Fire Opal
11.03mm x 8.60mm x 4.88mm
USD 39.50
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ID: 4051521 pcs
2.18ct Opal
11.16mm x 9.13mm x 5.05mm
USD 98.10
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ID: 3028991 pcs
17.27ct Boulder Opal
23.46mm x 13.52mm x 6.64mm
USD 120.89
Item in Stock
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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