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You Selected (183): Oval Shape 12x10 mm Gems Clear All
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ID: 4396871 pcs
thumb image of 6ct Oval Facet Blue Sapphire (ID: 439687)
5.96 ct Sapphire
12.1 x 9.9 mm
$ 20860.00
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ID: 4363591 pcs
thumb image of 4.1ct Oval Cabochon Orange Carnelian (ID: 436359)
4.08 ct Carnelian
12 x 10 mm
$ 16.32
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ID: 4582301 pcs
thumb image of 4.3ct Oval Cabochon Yellow Agate (ID: 458230)
4.28 ct Agate
11.9 x 10.1 mm
$ 6.42
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ID: 4187071 pcs
thumb image of 4ct Oval Cabochon Cream Star Moonstone (ID: 418707)
4.04 ct Star Moonstone
12.1 x 10.1 mm
$ 16.16
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ID: 4363311 pcs
thumb image of 3.9ct Oval Cabochon Orange Red Carnelian (ID: 436331)
3.94 ct Carnelian
12.1 x 10 mm
$ 15.76
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ID: 4090541 pcs
thumb image of 7.1ct Oval Facet Pink Kunzite (ID: 409054)
7.09 ct Kunzite
12.1 x 10.1 mm
$ 182.78
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ID: 4171871 pcs
thumb image of 5.3ct Oval Facet Golden Green Tourmaline (ID: 417187)
5.30 ct Tourmaline
12.2 x 9.8 mm
$ 795.00
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ID: 4187511 pcs
thumb image of 7.4ct Oval Cabochon Cream Star Moonstone (ID: 418751)
7.35 ct Star Moonstone
12.2 x 10.2 mm
$ 29.40
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ID: 4493852 pcs
thumb image of 13ct Oval Cabochon Multicolor Rhodochrosite (ID: 449385)
13.00 ct Rhodochrosite
12.2 x 10.2 mm
$ 26.00
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ID: 3792761 pcs
thumb image of 6.7ct Oval Portuguese-Cut Lively Green Peridot (ID: 379276)
6.67 ct Peridot
12.2 x 9.8 mm
$ 426.88
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ID: 4362411 pcs
thumb image of 4ct Oval Cabochon Orange Carnelian (ID: 436241)
3.96 ct Carnelian
12.1 x 10 mm
$ 15.84
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ID: 4494052 pcs
thumb image of 11.5ct Oval Cabochon Multicolor Rhodochrosite (ID: 449405)
11.53 ct Rhodochrosite
12.2 x 10.1 mm
$ 23.06
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ID: 4180521 pcs
thumb image of 4.3ct Oval Cabochon Cream Star Moonstone (ID: 418052)
4.31 ct Star Moonstone
12.2 x 9.8 mm
$ 17.24
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ID: 4107611 pcs
thumb image of 5.4ct Oval Cabochon Violet Amethyst (ID: 410761)
5.41 ct Amethyst
12.1 x 9.8 mm
$ 27.05
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ID: 4343241 pcs
thumb image of 4.6ct Oval Cabochon Green Jadeite (ID: 434324)
4.62 ct Jadeite
11.9 x 9.9 mm
$ 14.14
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ID: 4164811 pcs
thumb image of 4.4ct Oval Facet Golden Green Tourmaline (ID: 416481)
4.38 ct Tourmaline
12 x 9.9 mm
$ 657.00
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ID: 4187291 pcs
thumb image of 7.4ct Oval Cabochon Cream Star Moonstone (ID: 418729)
7.38 ct Star Moonstone
11.9 x 10.2 mm
$ 29.52
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ID: 3346001 pcs
thumb image of 4.7ct Oval Facet Honey Red Andesine Labradorite (ID: 334600)
4.67 ct Andesine Labradorite
12 x 10 mm
$ 56.04
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ID: 4346741 pcs
thumb image of 4.6ct Oval Cabochon Green Jadeite (ID: 434674)
4.64 ct Jadeite
12.1 x 9.9 mm
$ 14.20
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ID: 3345991 pcs
thumb image of 4.6ct Oval Facet Honey Red Andesine Labradorite (ID: 334599)
4.60 ct Andesine Labradorite
12 x 9.9 mm
$ 55.20
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ID: 4494062 pcs
thumb image of 12.5ct Oval Cabochon Multicolor Rhodochrosite (ID: 449406)
12.47 ct Rhodochrosite
12 x 10.2 mm
$ 24.94
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Oval Shape 12x10 mm Gems
Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated oval shapes, facet cut and cabochon gems available now in 12 x 10 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

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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