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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1488): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4319921 pcs
0.85ct Opal
7.17mm x 6.12mm x 4.10mm
USD 23.80
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ID: 3303044 pcs
3.05ctw Chocolate Opal
7.96mm x 6.02mm x 3.30mm
USD 94.20
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ID: 3082191 pcs
1.16ct Opal
10.90mm x 7.30mm x 4.70mm
USD 49.88
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ID: 3118351 pcs
1.86ct Opal
11.13mm x 8.21mm x 5.16mm
USD 74.40
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ID: 3152331 pcs
1.42ct Opal
11.22mm x 7.34mm x 4.66mm
USD 59.64
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ID: 4322011 pcs
0.66ct Fire Opal
6.35mm x 4.06mm
USD 17.55
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ID: 3674881 pcs
1.00ct Fire Opal
9.65mm x 6.49mm x 3.52mm
USD 33.38
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ID: 4322801 pcs
0.69ct Opal
6.54mm x 3.83mm
USD 19.32
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ID: 3218361 pcs
13.35ct Boulder Opal
21.38mm x 15.00mm x 5.42mm
USD 360.45
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ID: 39153720 pcs
6.46ctw Opal Doublet
6.05mm x 4.26mm x 1.99mm
USD 108.59
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ID: 4093921 pcs
7.99ct Fire Opal
17.91mm x 13.10mm x 8.35mm
USD 259.12
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ID: 3111211 pcs
1.56ct Opal
11.70mm x 8.28mm x 4.48mm
USD 62.40
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ID: 3438891 pcs
0.96ct Opal
8.97mm x 6.86mm x 4.26mm
USD 38.40
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ID: 3150781 pcs
1.34ct Opal
10.05mm x 7.92mm x 4.94mm
USD 56.28
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ID: 3004531 pcs
28.58ct Boulder Opal
23.12mm x 18.45mm x 7.13mm
USD 200.06
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ID: 4320001 pcs
0.69ct Opal
6.91mm x 6.14mm x 3.67mm
USD 19.32
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ID: 3668961 pcs
1.01ct Fire Opal
8.15mm x 6.17mm x 4.34mm
USD 39.39
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ID: 3194751 pcs
1.84ct Opal
11.04mm x 8.13mm x 5.49mm
USD 62.56
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ID: 3804041 pcs
15.07ct Fire Opal
27.19mm x 14.92mm x 8.15mm
USD 325.66
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ID: 4051931 pcs
1.92ct Fire Opal
11.13mm x 8.61mm x 5.23mm
USD 45.14
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ID: 3145651 pcs
1.69ct Opal
13.37mm x 6.82mm x 4.99mm
USD 67.60
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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