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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1578): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3227301 pcs
11.89ct Boulder Opal
14.86mm x 6.74mm
USD 321.03
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ID: 3218391 pcs
26.23ct Boulder Opal
23.22mm x 17.01mm x 9.46mm
USD 183.61
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ID: 3831281 pcs
0.89ct Fire Opal
8.58mm x 5.98mm x 3.93mm
USD 28.50
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ID: 4312751 pcs
0.89ct Opal
6.11mm x 4.71mm
USD 17.80
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ID: 4318962 pcs
2.11ctw Fire Opal
9.07mm x 7.03mm x 4.39mm
USD 56.10
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ID: 3693671 pcs
3.92ct Fire Opal
12.60mm x 10.27mm x 6.09mm
USD 127.13
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ID: 3439421 pcs
1.83ct Opal
11.30mm x 7.84mm x 5.39mm
USD 73.20
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ID: 4313741 pcs
0.71ct Opal
6.63mm x 5.84mm x 3.72mm
USD 14.20
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ID: 3825841 pcs
2.94ct Fire Opal
15.60mm x 9.13mm x 5.39mm
USD 62.89
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ID: 3430871 pcs
1.63ct Opal
11.28mm x 7.92mm x 4.80mm
USD 73.35
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ID: 3245241 pcs
3.57ct Black Opal
12.86mm x 12.12mm x 5.59mm
USD 142.80
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ID: 3624054 pcs
2.08ctw Opal Doublet
7.99mm x 5.08mm x 1.85mm
USD 38.00
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ID: 3165191 pcs
1.67ct Opal
12.99mm x 8.09mm x 4.14mm
USD 70.14
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ID: 4051961 pcs
2.00ct Fire Opal
11.42mm x 8.43mm x 5.27mm
USD 47.02
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ID: 3685942 pcs
1.64ctw Opal
7.82mm x 6.14mm x 3.90mm
USD 44.85
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ID: 2719881 pcs
2.88ct Opal
12.45mm x 9.47mm x 7.33mm
USD 51.68
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ID: 3674461 pcs
1.19ct Fire Opal
8.45mm x 6.95mm x 4.50mm
USD 39.72
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ID: 4052021 pcs
1.44ct Fire Opal
10.31mm x 7.74mm x 4.90mm
USD 33.85
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ID: 3051151 pcs
2.02ct Opal
10.65mm x 9.99mm x 4.17mm
USD 66.66
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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: 3682022 pcs
2.60ctw Opal
9.13mm x 7.12mm x 4.23mm
USD 71.63
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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