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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: 3832361 pcs
0.75ct Fire Opal
7.69 x 6.35 x 3.28mm
USD 24.02
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ID: 2994261 pcs
1.85ct Opal
10.02 x 8.02 x 6.42mm
USD 74.00
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ID: 4290301 pcs
0.63ct Opal
8.02 x 6.13 x 2.85mm
USD 17.64
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ID: 4324574 pcs
3.52ctw Fire Opal
8.84 x 6.96 x 4.16mm
USD 93.60
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ID: 3213451 pcs
0.78ct Opal
8.23 x 6.21 x 4.31mm
USD 31.20
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ID: 4312631 pcs
1.65ct Fire Opal
11.77 x 7.65 x 5.22mm
USD 57.67
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ID: 3111281 pcs
1.49ct Opal
11.78 x 8.32 x 4.02mm
USD 59.60
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ID: 3221161 pcs
36.68ct Boulder Opal
21.82 x 21.14 x 10.00mm
USD 256.76
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ID: 3151621 pcs
1.41ct Opal
11.33 x 7.86 x 4.34mm
USD 59.22
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ID: 3913222 pcs
5.49ctw Opal Doublet
17.53 x 7.56 x 2.55mm
USD 121.60
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ID: 4054151 pcs
1.57ct Fire Opal
10.16 x 7.88 x 5.48mm
USD 37.15
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ID: 3820421 pcs
6.94ct Fire Opal
27.62 x 10.44 x 5.29mm
USD 147.96
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ID: 3674521 pcs
1.13ct Fire Opal
8.00 x 6.74 x 4.78mm
USD 37.72
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ID: 3689144 pcs
2.63ctw Opal
7.88 x 5.99 x 3.16mm
USD 71.93
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ID: 3218421 pcs
22.67ct Boulder Opal
21.79 x 16.53 x 7.61mm
USD 158.69
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ID: 4287902 pcs
1.81ctw Opal
8.19 x 6.12 x 3.69mm
USD 50.68
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ID: 3831751 pcs
0.63ct Fire Opal
6.40 x 3.71mm
USD 20.17
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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: 4206811 pcs
9.90ct Boulder Opal
17.72 x 14.03 x 5.08mm
USD 59.40
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ID: 4291011 pcs
0.66ct Opal
8.07 x 6.06 x 2.95mm
USD 18.48
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ID: 3132941 pcs
0.63ct Opal
7.76 x 5.85 x 3.64mm
USD 25.20
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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:
+66-39303404

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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