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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1080): Oval Opal Gemstones - Fire Opal, Moss Opal, Opal, Opal Doublet, Boulder Opal, Chocolate Opal, Black Opal Clear All
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4 pcs
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thumb image of 0.4ct Oval Facet Multicolor Opal (ID: 462862)
0.42 ct (total 1.68ctw) Opal
7.1 x 5.1 mm
$ 67.20
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2 pcs
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thumb image of 0.7ct Oval Facet Orange Fire Opal (ID: 454423)
0.71 ct (total 1.42ctw) Fire Opal
7.9 x 6.1 mm
$ 37.40
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5 pcs
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thumb image of 0.3ct Oval Facet Orange Fire Opal (ID: 454467)
0.32 ct (total 1.60ctw) Fire Opal
6.6 x 4.9 mm
$ 42.14
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1 pc
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thumb image of 1.9ct Oval Cabochon Pink Opal (ID: 491421)
1.92 ct Opal
9.9 x 6.9 mm
$ 4.28
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1 pc
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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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1 pc
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thumb image of 2.1ct Oval Cabochon Pink Opal (ID: 491435)
2.05 ct Opal
10.4 x 8.6 mm
$ 4.57
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2 pcs
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thumb image of 3.2ct Oval Cabochon Pink Opal (ID: 484824)
3.19 ct (total 6.37ctw) Opal
11 x 9.1 mm
$ 21.02
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6 pcs
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thumb image of 0.2ct Oval Facet Multicolor Opal (ID: 471715)
0.21 ct (total 1.27ctw) Opal
6 x 4.1 mm
$ 39.87
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1 pc
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thumb image of 15.7ct Oval Cabochon Multicolor Opal (ID: 462134)
15.72 ct Opal
19.5 x 17.1 mm
$ 632.89
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1 pc
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thumb image of 2.3ct Oval Cabochon Pink Opal (ID: 491533)
2.32 ct Opal
9.6 x 7.8 mm
$ 5.17
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1 pc
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thumb image of 1.5ct Oval Cabochon Multicolor Black Opal (ID: 490380)
1.50 ct Black Opal
10.1 x 8 mm
$ 22.58
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1 pc
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thumb image of 1ct Oval Facet Reddish Orange Fire Opal (ID: 383385)
0.96 ct Fire Opal
8 x 6.3 mm
$ 25.53
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1 pc
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thumb image of 1.6ct Oval Cabochon Multicolor Opal (ID: 498271)
1.59 ct Opal
9.1 x 7 mm
$ 36.49
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4 pcs
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thumb image of 0.3ct Oval Facet Multicolor Opal (ID: 471734)
0.26 ct (total 1.04ctw) Opal
6 x 4.1 mm
$ 32.65
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1 pc
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thumb image of 15.4ct Oval Cabochon Yellow Opal (ID: 462135)
15.44 ct Opal
18.8 x 15.7 mm
$ 621.61
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1 pc
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thumb image of 3.7ct Oval Cabochon Yellow Dendrite Moss Opal (ID: 470208)
3.65 ct Moss Opal
13.3 x 11.3 mm
$ 18.25
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4 pcs
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thumb image of 0.6ct Oval Cabochon Multicolor Chocolate Opal (ID: 330639)
0.64 ct (total 2.56ctw) Chocolate Opal
7.1 x 5.1 mm
$ 76.80
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2 pcs
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thumb image of 6.1ct Oval Cabochon Pink Opal (ID: 483473)
6.11 ct (total 12.22ctw) Opal
14 x 10.1 mm
$ 40.69
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1 pc
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thumb image of 4ct Oval Cabochon Yellow Dendrite Moss Opal (ID: 470414)
3.98 ct Moss Opal
15.1 x 9.6 mm
$ 19.90
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1 pc
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thumb image of 0.9ct Oval Facet Multicolor Opal (ID: 321311)
0.88 ct Opal
8.3 x 6.2 mm
$ 35.20
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5 pcs
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thumb image of 0.5ct Oval Cabochon Multicolor Chocolate Opal (ID: 330691)
0.54 ct (total 2.71ctw) Chocolate Opal
7 x 5.1 mm
$ 81.30
Item in Stock
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.
Certified Customer Reviews
Overall Rating -> 10 star ratings
Huge variety including unusual cuts and colors
Posted By Steffie in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have bought several stones and am very happy with the price points, selection and speed of delivery. Sometimes the quality is not quite what I expected but given the prices, I am overall satisfied.
Posted By in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
offer military prices
Posted By Frobb1968 in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Trustworthy company & site, great products.
Posted By KM in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have been ordering from GemSelect for at least 6 years. Every single order was perfect - every item was as advertized, in perfect condition and arrived well within the specified time frame. I have recommended them to several friends.
Posted By Jim in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Excellent company with excellent website!
Posted By Marcy in August, 2018
Source: Bizrate
English speaking customer support only

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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