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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1644): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3046511 pcs
1.67ct Opal
15.17mm x 7.63mm x 3.67mm
USD 55.11
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ID: 3671291 pcs
1.73ct Fire Opal
9.99mm x 8.01mm x 4.79mm
USD 57.70
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ID: 4323921 pcs
0.56ct Fire Opal
7.01mm x 3.08mm
USD 14.89
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ID: 3689424 pcs
4.08ctw Opal
8.11mm x 6.13mm x 4.01mm
USD 110.69
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ID: 3669171 pcs
2.28ct Fire Opal
11.05mm x 8.70mm x 5.08mm
USD 88.92
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ID: 3696781 pcs
4.02ct Fire Opal
11.60mm x 6.66mm
USD 130.37
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ID: 3081241 pcs
1.73ct Opal
11.87mm x 8.09mm x 5.06mm
USD 74.39
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ID: 3004561 pcs
20.74ct Boulder Opal
23.08mm x 15.03mm x 7.65mm
USD 145.18
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ID: 4294671 pcs
0.96ct Opal
8.04mm x 6.20mm x 4.29mm
USD 26.88
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ID: 4206751 pcs
11.21ct Boulder Opal
17.95mm x 13.59mm x 5.71mm
USD 67.26
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ID: 4324533 pcs
2.02ctw Fire Opal
8.00mm x 6.12mm x 3.38mm
USD 53.71
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ID: 4323301 pcs
1.09ct Fire Opal
8.82mm x 6.89mm x 4.49mm
USD 28.98
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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: 4052001 pcs
1.79ct Fire Opal
11.00mm x 8.53mm x 5.39mm
USD 42.08
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ID: 3294924 pcs
1.74ctw Black Opal
5.94mm x 4.04mm x 3.49mm
USD 69.60
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ID: 3193901 pcs
3.99ct Black Opal
18.74mm x 8.27mm x 6.82mm
USD 159.60
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ID: 4055311 pcs
1.45ct Fire Opal
10.46mm x 8.26mm x 4.43mm
USD 34.31
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ID: 4312701 pcs
2.84ct Fire Opal
12.76mm x 9.17mm x 7.10mm
USD 99.26
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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: 4316181 pcs
2.59ct Fire Opal
13.50mm x 9.34mm x 5.77mm
USD 90.52
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ID: 4032841 pcs
20.57ct Opal
28.90mm x 18.62mm x 10.22mm
USD 94.42
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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