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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1493): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3103071 pcs
1.20ct Opal
9.09mm x 7.13mm x 4.65mm
USD 48.00
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ID: 4294611 pcs
1.04ct Opal
8.13mm x 6.11mm x 4.41mm
USD 29.12
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ID: 3694381 pcs
1.74ct Fire Opal
9.91mm x 7.98mm x 4.68mm
USD 56.43
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ID: 4294571 pcs
0.92ct Opal
8.24mm x 6.10mm x 4.04mm
USD 25.76
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ID: 4321582 pcs
1.45ctw Fire Opal
8.12mm x 6.18mm x 3.53mm
USD 38.56
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ID: 3689144 pcs
2.63ctw Opal
7.88mm x 5.99mm x 3.16mm
USD 71.93
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ID: 3102911 pcs
0.86ct Opal
8.92mm x 6.89mm x 3.89mm
USD 34.40
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ID: 3302481 pcs
5.45ct Black Opal
17.44mm x 11.13mm x 6.23mm
USD 218.00
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ID: 3147421 pcs
1.29ct Opal
10.19mm x 7.72mm x 4.54mm
USD 51.60
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ID: 3158781 pcs
0.98ct Opal
11.16mm x 6.79mm x 4.01mm
USD 41.16
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ID: 3699594 pcs
3.77ctw Opal Doublet
8.23mm x 6.11mm x 2.40mm
USD 69.37
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ID: 4320011 pcs
0.78ct Opal
7.74mm x 6.25mm x 3.72mm
USD 21.84
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ID: 3820421 pcs
6.94ct Fire Opal
27.62mm x 10.44mm x 5.29mm
USD 147.96
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ID: 3672344 pcs
3.39ctw Fire Opal
7.26mm x 6.16mm x 4.23mm
USD 113.06
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ID: 4318982 pcs
1.65ctw Fire Opal
8.09mm x 6.15mm x 4.25mm
USD 43.87
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ID: 3245361 pcs
2.35ct Opal
13.76mm x 9.61mm x 4.24mm
USD 94.00
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ID: 3536191 pcs
5.33ct Opal
15.93mm x 10.41mm x 5.95mm
USD 213.20
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ID: 3193901 pcs
3.99ct Black Opal
18.74mm x 8.27mm x 6.82mm
USD 159.60
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ID: 3471901 pcs
0.88ct Opal
8.93mm x 6.73mm x 4.06mm
USD 36.96
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ID: 4207341 pcs
7.53ct Boulder Opal
14.15mm x 11.43mm x 5.41mm
USD 45.18
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ID: 4320481 pcs
0.60ct Opal
6.48mm x 5.86mm x 3.41mm
USD 16.80
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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