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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1498): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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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: 4318982 pcs
1.65ctw Fire Opal
8.09mm x 6.15mm x 4.25mm
USD 43.87
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ID: 3184021 pcs
1.14ct Opal
9.06mm x 7.04mm x 4.96mm
USD 47.88
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ID: 4288112 pcs
1.63ctw Opal
8.24mm x 6.20mm x 3.60mm
USD 45.64
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ID: 4312781 pcs
0.85ct Opal
7.31mm x 6.41mm x 3.98mm
USD 17.00
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ID: 4293441 pcs
0.66ct Opal
8.19mm x 6.09mm x 2.81mm
USD 18.48
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ID: 3145701 pcs
1.28ct Opal
14.51mm x 6.71mm x 3.41mm
USD 51.20
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ID: 4320912 pcs
1.34ctw Fire Opal
8.01mm x 6.06mm x 3.12mm
USD 35.63
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ID: 3652311 pcs
15.09ct Boulder Opal
16.39mm x 6.37mm
USD 105.63
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ID: 4323971 pcs
0.60ct Fire Opal
6.86mm x 3.87mm
USD 15.95
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ID: 3430561 pcs
1.46ct Opal
10.94mm x 8.72mm x 4.91mm
USD 65.70
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ID: 3152371 pcs
1.61ct Opal
11.24mm x 7.94mm x 4.53mm
USD 67.62
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ID: 4319032 pcs
1.24ctw Fire Opal
8.05mm x 6.06mm x 3.46mm
USD 32.97
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ID: 4322461 pcs
0.81ct Fire Opal
7.99mm x 5.97mm x 4.77mm
USD 21.54
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ID: 4206561 pcs
1.83ct Opal Doublet
11.87mm x 8.05mm x 2.39mm
USD 29.28
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ID: 3165431 pcs
1.54ct Opal
10.14mm x 8.05mm x 4.83mm
USD 64.68
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ID: 3695641 pcs
7.09ct Boulder Opal
13.92mm x 11.90mm x 4.88mm
USD 49.63
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ID: 3703911 pcs
2.01ct Opal
11.71mm x 7.51mm x 5.34mm
USD 65.37
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ID: 4062141 pcs
19.45ct Opal
25.62mm x 18.66mm x 8.57mm
USD 68.66
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ID: 3303414 pcs
3.01ctw Chocolate Opal
7.14mm x 5.99mm x 3.56mm
USD 90.30
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ID: 3644111 pcs
1.08ct Opal
9.02mm x 6.87mm x 5.07mm
USD 43.20
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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:
+66-39340503

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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