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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1496): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3830501 pcs
0.87ct Fire Opal
6.65mm x 6.62mm x 3.93mm
USD 27.86
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ID: 4319392 pcs
1.99ctw Fire Opal
9.12mm x 7.09mm x 4.09mm
USD 52.91
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ID: 3297864 pcs
2.47ctw Black Opal
7.01mm x 5.03mm x 3.62mm
USD 98.80
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ID: 4207321 pcs
8.11ct Boulder Opal
13.34mm x 11.42mm x 5.78mm
USD 48.66
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ID: 3166201 pcs
1.47ct Opal
10.08mm x 8.15mm x 4.46mm
USD 61.74
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ID: 4319742 pcs
1.40ctw Fire Opal
8.01mm x 6.03mm x 3.81mm
USD 37.23
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ID: 3220381 pcs
54.71ct Boulder Opal
27.25mm x 23.29mm x 10.15mm
USD 382.97
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ID: 4323014 pcs
2.16ctw Fire Opal
6.92mm x 5.14mm x 4.10mm
USD 57.43
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ID: 4311401 pcs
2.37ct Fire Opal
13.31mm x 8.45mm x 6.23mm
USD 82.83
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ID: 3107461 pcs
10.52ct Boulder Opal
21.67mm x 12.99mm x 5.39mm
USD 73.64
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ID: 3218371 pcs
16.89ct Boulder Opal
20.66mm x 14.77mm x 7.56mm
USD 456.03
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ID: 3682002 pcs
2.99ctw Opal
9.18mm x 7.20mm x 4.94mm
USD 82.37
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ID: 3029221 pcs
32.39ct Boulder Opal
33.69mm x 14.95mm x 7.49mm
USD 226.73
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ID: 3672194 pcs
2.14ctw Fire Opal
6.48mm x 5.12mm x 3.53mm
USD 71.37
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ID: 3094781 pcs
0.77ct Opal
8.09mm x 6.05mm x 3.79mm
USD 33.11
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ID: 4312631 pcs
1.65ct Fire Opal
11.77mm x 7.65mm x 5.22mm
USD 57.67
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ID: 4310791 pcs
0.60ct Opal
6.09mm x 5.26mm x 3.83mm
USD 12.00
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ID: 3080651 pcs
2.01ct Opal
12.81mm x 8.93mm x 4.88mm
USD 86.43
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ID: 3147801 pcs
1.69ct Opal
10.15mm x 8.10mm x 5.57mm
USD 67.60
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ID: 4223251 pcs
1.05ct Opal
8.36mm x 5.92mm x 4.05mm
USD 20.36
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ID: 3297854 pcs
2.13ctw Black Opal
6.93mm x 5.02mm x 3.23mm
USD 85.20
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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