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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1118): Oval Opal Gemstones - Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 4505492 pcs
thumb image of 1.4ct Oval Facet Orange Fire Opal (ID: 450549)
1.41 ct Fire Opal
8 x 6 mm
$ 37.76
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ID: 4626804 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 462680)
1.81 ct Opal
6.9 x 5.1 mm
$ 72.40
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ID: 4544675 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 454467)
1.60 ct Fire Opal
6.6 x 4.9 mm
$ 42.14
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ID: 4846771 pcs
thumb image of 1.8ct Oval Cabochon Pink Opal (ID: 484677)
1.82 ct Opal
8.9 x 7 mm
$ 6.01
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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: 3117951 pcs
thumb image of 1.5ct Oval Facet Yellow Opal (ID: 311795)
1.46 ct Opal
11 x 7.4 mm
$ 58.40
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ID: 4320872 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 432087)
1.57 ct Fire Opal
8 x 6.2 mm
$ 41.75
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ID: 4623624 pcs
thumb image of 2.1ct Oval Facet Multicolor Opal (ID: 462362)
2.07 ct Opal
7.1 x 5.1 mm
$ 82.80
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ID: 4540314 pcs
thumb image of 2ct Oval Facet Orange Fire Opal (ID: 454031)
2.02 ct Fire Opal
7.1 x 5.3 mm
$ 53.21
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ID: 4672701 pcs
thumb image of 18.3ct Oval Cabochon White Opal (ID: 467270)
18.33 ct Opal
20 x 16.9 mm
$ 737.97
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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: 4617681 pcs
thumb image of 1.6ct Oval Facet Multicolor Opal (ID: 461768)
1.57 ct Opal
10.1 x 8.1 mm
$ 55.52
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ID: 4543022 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 454302)
1.61 ct Fire Opal
7.8 x 6.2 mm
$ 42.41
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ID: 4495834 pcs
thumb image of 2.3ct Oval Facet Orange Fire Opal (ID: 449583)
2.30 ct Fire Opal
7 x 5.2 mm
$ 61.62
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ID: 4620931 pcs
thumb image of 17.3ct Oval Cabochon Multicolor Opal (ID: 462093)
17.26 ct Opal
19.3 x 14.8 mm
$ 694.89
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ID: 4846801 pcs
thumb image of 1.8ct Oval Cabochon Pink Opal (ID: 484680)
1.83 ct Opal
8.9 x 6.9 mm
$ 6.04
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ID: 4504052 pcs
thumb image of 1.6ct Oval Facet Orange Fire Opal (ID: 450405)
1.62 ct Fire Opal
7.7 x 6.1 mm
$ 43.38
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ID: 4717334 pcs
thumb image of 1.1ct Oval Facet White Opal (ID: 471733)
1.13 ct Opal
6.1 x 4.1 mm
$ 35.47
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ID: 4622141 pcs
thumb image of 16.8ct Oval Cabochon White Opal (ID: 462214)
16.83 ct Opal
20.8 x 16.6 mm
$ 677.58
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ID: 3833881 pcs
thumb image of 0.7ct Oval Facet Reddish Orange Fire Opal (ID: 383388)
0.66 ct Fire Opal
8.2 x 5.7 mm
$ 21.09
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ID: 4738551 pcs
thumb image of 1.3ct Oval Cabochon Multicolor Black Opal (ID: 473855)
1.25 ct Black Opal
9.1 x 7.1 mm
$ 26.16
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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.
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

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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