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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1659): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4207871 pcs
4.18ct Opal Doublet
17.41mm x 12.07mm x 2.38mm
USD 66.88
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ID: 3693711 pcs
3.45ct Fire Opal
14.82mm x 9.50mm x 6.16mm
USD 111.88
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ID: 4052041 pcs
1.16ct Fire Opal
9.25mm x 7.13mm x 4.62mm
USD 27.27
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ID: 2694311 pcs
1.44ct Opal
9.00mm x 6.33mm x 4.56mm
USD 28.80
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ID: 3832351 pcs
0.78ct Fire Opal
6.81mm x 4.17mm
USD 24.98
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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: 4206301 pcs
8.61ct Boulder Opal
15.68mm x 10.56mm x 6.05mm
USD 51.66
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ID: 3644101 pcs
1.08ct Opal
10.93mm x 7.73mm x 3.68mm
USD 43.20
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ID: 3094321 pcs
0.74ct Opal
8.17mm x 6.23mm x 3.85mm
USD 31.82
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ID: 3668231 pcs
1.91ct Fire Opal
10.19mm x 8.23mm x 4.86mm
USD 74.49
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ID: 4321961 pcs
0.51ct Fire Opal
6.90mm x 5.23mm x 3.62mm
USD 13.56
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ID: 4319541 pcs
1.41ct Opal
8.97mm x 6.98mm x 4.62mm
USD 39.48
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ID: 3306324 pcs
2.48ctw Chocolate Opal
7.05mm x 5.11mm x 3.62mm
USD 74.40
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ID: 3165451 pcs
1.88ct Opal
11.43mm x 8.55mm x 4.66mm
USD 78.96
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ID: 3833791 pcs
0.57ct Fire Opal
6.47mm x 5.13mm x 3.76mm
USD 18.22
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ID: 4056741 pcs
1.10ct Fire Opal
9.19mm x 6.90mm x 4.59mm
USD 25.94
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ID: 3146871 pcs
2.10ct Opal
15.18mm x 7.11mm x 5.40mm
USD 84.00
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ID: 4222731 pcs
2.51ct Opal
12.69mm x 7.53mm x 5.73mm
USD 72.11
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ID: 4032861 pcs
19.55ct Opal
26.97mm x 19.57mm x 9.09mm
USD 89.73
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ID: 4319402 pcs
1.48ctw Fire Opal
7.98mm x 6.02mm x 3.81mm
USD 39.35
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ID: 4294111 pcs
0.72ct Opal
8.15mm x 6.14mm x 3.22mm
USD 20.16
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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