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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (953): Oval Opal Gemstones Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3150701 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 315070)
1.64 ct Opal
10.6 x 7.8 mm
$ 68.88
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ID: 3671371 pcs
thumb image of 1.6ct Oval Facet Reddish Orange Fire Opal (ID: 367137)
1.64 ct Fire Opal
9.6 x 7.8 mm
$ 54.69
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ID: 4623674 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 462367)
1.60 ct Opal
7 x 5.1 mm
$ 64.00
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ID: 4319042 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 431904)
1.82 ct Fire Opal
9.1 x 7.1 mm
$ 48.39
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ID: 4310871 pcs
thumb image of 0.6ct Oval Cabochon Multicolor Opal (ID: 431087)
0.64 ct Opal
6.3 x 5.3 mm
$ 12.80
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ID: 3668931 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 366893)
1.55 ct Fire Opal
10.2 x 7.9 mm
$ 60.45
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ID: 4539742 pcs
thumb image of 1.3ct Oval Facet Orange Fire Opal (ID: 453974)
1.26 ct Fire Opal
7.8 x 6 mm
$ 33.19
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ID: 4495894 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 449589)
1.77 ct Fire Opal
7.1 x 5.1 mm
$ 47.42
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ID: 4495592 pcs
thumb image of 1.7ct Oval Facet Orange Fire Opal (ID: 449559)
1.65 ct Fire Opal
8.1 x 6.1 mm
$ 44.20
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ID: 4616041 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 461604)
1.30 ct Opal
10.1 x 8.1 mm
$ 45.97
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ID: 4495372 pcs
thumb image of 1.3ct Oval Facet Orange Fire Opal (ID: 449537)
1.33 ct Fire Opal
7.9 x 5.9 mm
$ 35.63
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ID: 4506984 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 450698)
1.81 ct Fire Opal
6.9 x 5 mm
$ 48.47
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ID: 3704051 pcs
thumb image of 2.6ct Oval Facet Orange Fire Opal (ID: 370405)
2.63 ct Fire Opal
11.1 x 8.9 mm
$ 69.93
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ID: 4539082 pcs
thumb image of 1.4ct Oval Facet Orange Fire Opal (ID: 453908)
1.44 ct Fire Opal
8 x 6.1 mm
$ 37.93
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ID: 4495864 pcs
thumb image of 2.4ct Oval Facet Orange Fire Opal (ID: 449586)
2.36 ct Fire Opal
7.7 x 6 mm
$ 63.22
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ID: 3804011 pcs
thumb image of 15.8ct Oval Cabochon Yellow Fire Opal (ID: 380401)
15.79 ct Fire Opal
22.3 x 14.9 mm
$ 341.22
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ID: 4504132 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 450413)
1.81 ct Fire Opal
8.1 x 6.2 mm
$ 48.47
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ID: 4621921 pcs
thumb image of 9.8ct Oval Cabochon Multicolor Opal (ID: 462192)
9.80 ct Opal
22.7 x 15.5 mm
$ 394.55
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ID: 3832361 pcs
thumb image of 0.8ct Oval Facet Reddish Orange Fire Opal (ID: 383236)
0.75 ct Fire Opal
7.7 x 6.4 mm
$ 19.94
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ID: 4051991 pcs
thumb image of 1.7ct Oval Facet Orange Fire Opal (ID: 405199)
1.68 ct Fire Opal
11 x 8.6 mm
$ 44.67
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ID: 4539662 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 453966)
1.51 ct Fire Opal
7.9 x 5.9 mm
$ 39.77
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Oval Opal Gemstones
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.

Shop for oval opal gemstones in a variety of calibrated sizes, colors and origins. We have fire opal, opal doublets, common opal, black opal, boulder opal, chocolate opal and more in matching pairs, lots and cabochon or facet cuts.
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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