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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1173): Opal Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal, Opal in Matrix Clear All
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ID: 3668191 pcs
thumb image of 2ct Oval Facet Reddish Orange Fire Opal (ID: 366819)
1.97 ct Fire Opal
9.9 x 8.4 mm
$ 76.83
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ID: 3029261 pcs
thumb image of 22.2ct Oval Cabochon Multicolor Boulder Opal (ID: 302926)
22.16 ct Boulder Opal
22.7 x 18.1 mm
$ 155.12
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ID: 4491661 pcs
thumb image of 4ct Fancy Cabochon Multicolor Opal Doublet (ID: 449166)
3.97 ct Opal Doublet
18.8 x 11.1 mm
$ 57.92
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ID: 3093421 pcs
thumb image of 0.8ct Oval Facet Multicolor Opal (ID: 309342)
0.75 ct Opal
7.9 x 6.1 mm
$ 32.25
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ID: 3672374 pcs
thumb image of 2.9ct Oval Facet Reddish Orange Fire Opal (ID: 367237)
2.88 ct Fire Opal
7.1 x 5.4 mm
$ 96.05
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ID: 3194751 pcs
thumb image of 1.8ct Pear Facet Multicolor Opal (ID: 319475)
1.84 ct Opal
11 x 8.1 mm
$ 62.56
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ID: 4321431 pcs
thumb image of 0.4ct Oval Cabochon Multicolor Opal (ID: 432143)
0.44 ct Opal
5.8 x 4.8 mm
$ 12.32
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ID: 3831201 pcs
thumb image of 0.6ct Oval Facet Reddish Orange Fire Opal (ID: 383120)
0.59 ct Fire Opal
7.6 x 4.8 mm
$ 18.89
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ID: 3536151 pcs
thumb image of 5ct Pear Cabochon Multicolor Opal (ID: 353615)
5.04 ct Opal
13.8 x 13.7 mm
$ 201.60
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ID: 3218351 pcs
thumb image of 8.6ct Pear Cabochon Multicolor Boulder Opal (ID: 321835)
8.60 ct Boulder Opal
18.9 x 12.5 mm
$ 60.20
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ID: 3080881 pcs
thumb image of 1.3ct Pear Facet Multicolor Opal (ID: 308088)
1.28 ct Opal
11 x 8 mm
$ 55.04
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ID: 4420571 pcs
thumb image of 8.2ct Oval Cabochon Multicolor Opal in Matrix (ID: 442057)
8.20 ct Opal in Matrix
16.1 x 11.1 mm
$ 122.34
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ID: 3695211 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 369521)
1.54 ct Fire Opal
9.4 x 7.8 mm
$ 49.94
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ID: 3652481 pcs
thumb image of 11.3ct Oval Cabochon Multicolor Boulder Opal (ID: 365248)
11.33 ct Boulder Opal
15.8 x 12.8 mm
$ 79.31
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ID: 3093431 pcs
thumb image of 0.7ct Oval Facet Multicolor Opal (ID: 309343)
0.74 ct Opal
8.1 x 6.3 mm
$ 31.82
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ID: 3306424 pcs
thumb image of 2.8ct Oval Cabochon Multicolor Chocolate Opal (ID: 330642)
2.83 ct Chocolate Opal
7 x 5.1 mm
$ 84.90
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ID: 3673001 pcs
thumb image of 1.1ct Oval Facet Reddish Orange Fire Opal (ID: 367300)
1.12 ct Fire Opal
9.3 x 6.9 mm
$ 37.39
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ID: 4062141 pcs
thumb image of 19.5ct Carved Turtle Multicolor Opal (ID: 406214)
19.45 ct Opal
25.6 x 18.7 mm
$ 68.66
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ID: 3080701 pcs
thumb image of 1.5ct Pear Facet Multicolor Opal (ID: 308070)
1.50 ct Opal
11.3 x 7.4 mm
$ 64.50
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ID: 2719911 pcs
thumb image of 3.2ct Pear Facet Multicolor Opal (ID: 271991)
3.17 ct Opal
12.4 x 11.2 mm
$ 53.89
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ID: 3694961 pcs
thumb image of 1.1ct Round Facet Reddish Orange Fire Opal (ID: 369496)
1.06 ct Fire Opal
7.5 mm
$ 34.38
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Opal
Opal Gemstone Information Opal Ring Information

More than any other gem, each opal is distinctly individual. No other gemstone has such rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to ensure their health and longevity. There are many varieties of opal, including black opal, white opal, common opal (potch), chocolate opal, boulder opal, opal doublet, opal triplet, fire opal and opal in matrix.

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, and is known in the gem trade as play of color. Opal is relatively soft, with a rating of 5.5-6.5 on the Mohs scale. Despite its frequent use in gemstone rings, opal is not the greatest choice as a ring stone; it is however, very-well suited for other types of gemstone jewelry, including gemstone earrings, pins and gemstone pendants.

Major suppliers include Australia, Brazil, Ethiopia, Mexico, Peru and the United States. Values are normally determined by the presence and nature of color flashes, except in the case of Mexican fire opal, where body color is most valued.
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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