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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: 4420051 pcs
thumb image of 3.4ct Oval Cabochon Multicolor Opal in Matrix (ID: 442005)
3.41 ct Opal in Matrix
12.7 x 9.6 mm
$ 50.88
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ID: 3830911 pcs
thumb image of 9.9ct Pear Cabochon Yellow Fire Opal (ID: 383091)
9.87 ct Fire Opal
26.6 x 12.9 mm
$ 210.72
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ID: 3674661 pcs
thumb image of 1.3ct Cushion-Cut Reddish Orange Fire Opal (ID: 367466)
1.32 ct Fire Opal
7.9 x 7.9 mm
$ 44.06
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ID: 4492881 pcs
thumb image of 5.4ct Marquise Cabochon Blue Opal Doublet (ID: 449288)
5.42 ct Opal Doublet
25.1 x 9.9 mm
$ 79.08
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ID: 4065191 pcs
thumb image of 29.8ct Carved Turtle Multicolor Opal (ID: 406519)
29.80 ct Opal
31.5 x 17.3 mm
$ 150.49
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ID: 4468053 pcs
thumb image of 2.6ct Oval Cabochon Multicolor Opal Doublet (ID: 446805)
2.55 ct Opal Doublet
8.1 x 6 mm
$ 38.25
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ID: 2408211 pcs
thumb image of 6.6ct Fancy Cabochon Multicolor Boulder Opal (ID: 240821)
6.63 ct Boulder Opal
18.6 x 10.8 mm
$ 46.41
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ID: 4292261 pcs
thumb image of 0.9ct Oval Cabochon Multicolor Opal (ID: 429226)
0.93 ct Opal
8.1 x 6.1 mm
$ 26.04
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ID: 3830501 pcs
thumb image of 0.9ct Cushion-Cut Reddish Orange Fire Opal (ID: 383050)
0.87 ct Fire Opal
6.7 x 6.6 mm
$ 27.86
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ID: 4422301 pcs
thumb image of 3.7ct Cushion Cabochon Multicolor Opal in Matrix (ID: 442230)
3.65 ct Opal in Matrix
14.1 x 8.6 mm
$ 54.46
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ID: 4421251 pcs
thumb image of 2.4ct Oval Cabochon Multicolor Opal in Matrix (ID: 442125)
2.36 ct Opal in Matrix
10.8 x 8.2 mm
$ 35.21
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ID: 4055251 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 405525)
1.50 ct Fire Opal
10.1 x 7.8 mm
$ 35.49
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ID: 3669101 pcs
thumb image of 2ct Octagon Facet Orange Fire Opal (ID: 366910)
2.02 ct Fire Opal
13.8 x 5.7 mm
$ 78.78
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ID: 3219251 pcs
thumb image of 32.4ct Pear Cabochon Multicolor Boulder Opal (ID: 321925)
32.44 ct Boulder Opal
28.4 x 23.2 mm
$ 227.08
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ID: 4319091 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 431909)
0.59 ct Opal
6.5 x 5.8 mm
$ 16.52
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ID: 3653121 pcs
thumb image of 5ct Oval Cabochon Multicolor Boulder Opal (ID: 365312)
4.95 ct Boulder Opal
11.3 x 9.2 mm
$ 34.65
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ID: 3668201 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 366820)
1.92 ct Fire Opal
10.2 x 8 mm
$ 74.88
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ID: 4319342 pcs
thumb image of 1.4ct Oval Facet Orange Fire Opal (ID: 431934)
1.41 ct Fire Opal
8 x 6.2 mm
$ 37.49
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ID: 4495722 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 449572)
1.95 ct Fire Opal
8.9 x 6.9 mm
$ 52.24
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ID: 4319481 pcs
thumb image of 0.8ct Pear Cabochon Multicolor Opal (ID: 431948)
0.84 ct Opal
8.1 x 5.5 mm
$ 23.52
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ID: 4493071 pcs
thumb image of 1.6ct Oval Cabochon Multicolor Opal Doublet (ID: 449307)
1.57 ct Opal Doublet
9.3 x 7.3 mm
$ 22.91
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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