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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (963): Oval Opal Gemstones Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4626364 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 462636)
1.34 ct Opal
7.1 x 5 mm
$ 53.60
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ID: 4539042 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 453904)
1.61 ct Fire Opal
8 x 6.1 mm
$ 42.41
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ID: 4544755 pcs
thumb image of 2.2ct Oval Facet Orange Fire Opal (ID: 454475)
2.20 ct Fire Opal
7 x 5.1 mm
$ 57.95
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ID: 3832011 pcs
thumb image of 0.6ct Oval Facet Reddish Orange Fire Opal (ID: 383201)
0.56 ct Fire Opal
5.9 x 5.2 mm
$ 17.93
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ID: 3439421 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 343942)
1.83 ct Opal
11.3 x 7.8 mm
$ 73.20
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ID: 3689526 pcs
thumb image of 3.2ct Oval Cabochon Multicolor Opal (ID: 368952)
3.16 ct Opal
7 x 5.1 mm
$ 85.73
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ID: 4320892 pcs
thumb image of 1.4ct Oval Facet Orange Fire Opal (ID: 432089)
1.39 ct Fire Opal
7.9 x 6.1 mm
$ 36.96
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ID: 4321841 pcs
thumb image of 0.6ct Oval Cabochon White Opal (ID: 432184)
0.61 ct Opal
6.9 x 5.7 mm
$ 17.08
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ID: 3166361 pcs
thumb image of 1.4ct Oval Facet Multicolor Opal (ID: 316636)
1.44 ct Opal
9.9 x 7.9 mm
$ 60.48
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ID: 4504682 pcs
thumb image of 1.3ct Oval Facet Orange Fire Opal (ID: 450468)
1.31 ct Fire Opal
7.8 x 6.1 mm
$ 35.08
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ID: 4322914 pcs
thumb image of 2.2ct Oval Facet Orange Fire Opal (ID: 432291)
2.23 ct Fire Opal
7 x 5.2 mm
$ 59.30
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ID: 3686912 pcs
thumb image of 2ct Oval Cabochon Multicolor Opal (ID: 368691)
2.03 ct Opal
8 x 6.1 mm
$ 55.52
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ID: 3832081 pcs
thumb image of 0.6ct Oval Facet Reddish Orange Fire Opal (ID: 383208)
0.59 ct Fire Opal
7 x 5.2 mm
$ 18.89
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ID: 4319352 pcs
thumb image of 1.4ct Oval Facet Orange Fire Opal (ID: 431935)
1.40 ct Fire Opal
8.1 x 6.1 mm
$ 37.23
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ID: 3212261 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 321226)
1.57 ct Opal
10 x 8.1 mm
$ 62.80
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ID: 4542992 pcs
thumb image of 1.9ct Oval Facet Orange Fire Opal (ID: 454299)
1.88 ct Fire Opal
9 x 7.1 mm
$ 49.52
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ID: 4628444 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 462844)
1.55 ct Opal
7 x 5 mm
$ 62.00
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ID: 4507004 pcs
thumb image of 2.4ct Oval Facet Orange Fire Opal (ID: 450700)
2.37 ct Fire Opal
7.1 x 5.2 mm
$ 63.47
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ID: 4291831 pcs
thumb image of 0.7ct Oval Cabochon White Opal (ID: 429183)
0.71 ct Opal
7.9 x 5.9 mm
$ 19.88
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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: 4495302 pcs
thumb image of 1.4ct Oval Facet Orange Fire Opal (ID: 449530)
1.37 ct Fire Opal
8 x 6.2 mm
$ 36.70
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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