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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: 4293731 pcs
1.00ct Opal
8.22mm x 6.17mm x 3.98mm
USD 28.00
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ID: 3199581 pcs
1.28ct Opal
8.77mm x 6.85mm x 5.29mm
USD 57.60
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ID: 3694991 pcs
2.50ct Fire Opal
10.05mm x 8.81mm x 6.50mm
USD 81.08
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ID: 4207311 pcs
7.28ct Boulder Opal
12.43mm x 10.18mm x 6.34mm
USD 43.68
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ID: 3634661 pcs
3.80ct Black Opal
15.19mm x 9.47mm x 5.29mm
USD 152.00
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ID: 4289022 pcs
1.69ctw Opal
8.20mm x 6.11mm x 3.85mm
USD 47.32
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ID: 4293081 pcs
0.78ct Opal
7.96mm x 5.95mm x 3.38mm
USD 21.84
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ID: 2939912 pcs
1.03ctw Opal Doublet
6.90mm x 4.75mm x 1.76mm
USD 30.90
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ID: 3156044 pcs
3.09ctw Opal Doublet
8.04mm x 6.00mm x 1.99mm
USD 77.25
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ID: 3460001 pcs
0.78ct Opal
8.22mm x 6.18mm x 4.43mm
USD 31.20
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ID: 4288552 pcs
1.78ctw Opal
8.15mm x 6.08mm x 3.92mm
USD 49.84
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ID: 4294941 pcs
0.77ct Opal
7.91mm x 6.04mm x 3.29mm
USD 21.56
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ID: 3730701 pcs
5.59ct Black Opal
19.68mm x 10.27mm x 6.49mm
USD 223.60
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ID: 3688021 pcs
1.15ct Opal
10.50mm x 7.50mm x 3.16mm
USD 31.45
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ID: 3652231 pcs
13.52ct Boulder Opal
26.49mm x 11.81mm x 6.01mm
USD 94.64
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ID: 3801071 pcs
12.52ct Fire Opal
17.25mm x 14.15mm x 8.67mm
USD 438.20
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ID: 4322411 pcs
0.37ct Opal
5.31mm x 3.11mm
USD 10.36
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ID: 4206161 pcs
4.81ct Opal Doublet
20.35mm x 11.28mm x 2.42mm
USD 76.96
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ID: 3297844 pcs
2.54ctw Black Opal
6.99mm x 5.05mm x 3.53mm
USD 101.60
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ID: 4053161 pcs
1.07ct Fire Opal
10.97mm x 6.85mm x 4.36mm
USD 25.16
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ID: 3804071 pcs
18.36ct Fire Opal
31.32mm x 15.40mm x 8.66mm
USD 396.76
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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