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You Selected (276): Oval Shape 12x10 mm Gems Clear All
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ID: 4354771 pcs
thumb image of 4.1ct Oval Facet Violet Amethyst (ID: 435477)
4.14ct Amethyst
12.14 x 9.94 x 5.75mm
USD 20.70
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ID: 4363321 pcs
thumb image of 3.3ct Oval Cabochon Brownish Red Carnelian (ID: 436332)
3.28ct Carnelian
11.93 x 9.82 x 4.09mm
USD 13.12
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ID: 2306851 pcs
thumb image of 5ct Oval Checkerboard Green Prehnite (ID: 230685)
4.98ct Prehnite
11.94 x 10.01 x 7.18mm
USD 22.41
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ID: 4169611 pcs
thumb image of 6.3ct Oval Cabochon Cream Star Moonstone (ID: 416961)
6.30ct Star Moonstone
11.69 x 10.36 x 7.00mm
USD 25.20
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ID: 3848911 pcs
thumb image of 5.3ct Oval Facet White Topaz (ID: 384891)
5.33ct Topaz
12.15 x 10.04 x 5.94mm
USD 37.31
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ID: 4105551 pcs
thumb image of 5.4ct Oval Cabochon Violet Amethyst (ID: 410555)
5.42ct Amethyst
12.15 x 9.95 x 6.14mm
USD 27.10
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ID: 4187291 pcs
thumb image of 7.4ct Oval Cabochon Cream Star Moonstone (ID: 418729)
7.38ct Star Moonstone
11.92 x 10.15 x 7.93mm
USD 29.52
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ID: 4077541 pcs
thumb image of 4.1ct Oval Facet Golden Green Apatite (ID: 407754)
4.14ct Apatite
12.02 x 9.78 x 5.06mm
USD 172.02
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ID: 4187071 pcs
thumb image of 4ct Oval Cabochon Cream Star Moonstone (ID: 418707)
4.04ct Star Moonstone
12.10 x 10.11 x 4.77mm
USD 16.16
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ID: 4258771 pcs
thumb image of 5.8ct Oval Facet White Topaz (ID: 425877)
5.79ct Topaz
11.95 x 9.92 x 6.36mm
USD 34.74
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ID: 4186831 pcs
thumb image of 5.5ct Oval Cabochon Cream Star Moonstone (ID: 418683)
5.45ct Star Moonstone
11.77 x 10.02 x 6.60mm
USD 21.80
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ID: 4140041 pcs
thumb image of 4.9ct Oval Cabochon Cream Peach Star Moonstone (ID: 414004)
4.90ct Star Moonstone
11.93 x 9.62 x 5.81mm
USD 19.60
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ID: 4076651 pcs
thumb image of 6.2ct Oval Cabochon Green Maw-Sit-Sit (ID: 407665)
6.19ct Maw-Sit-Sit
12.46 x 9.97 x 6.33mm
USD 12.38
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ID: 3338091 pcs
thumb image of 5.4ct Oval Cabochon Colorless Golden Rutile Quartz (ID: 333809)
5.43ct Rutile Quartz
12.27 x 10.13 x 5.94mm
USD 19.00
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ID: 4226941 pcs
thumb image of 4.2ct Oval Facet Yellow Golden Golden Beryl (ID: 422694)
4.23ct Golden Beryl
12.24 x 9.78 x 5.90mm
USD 105.75
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ID: 4140931 pcs
thumb image of 6.9ct Oval Cabochon Cream Peach Star Moonstone (ID: 414093)
6.88ct Star Moonstone
11.81 x 10.20 x 7.60mm
USD 27.52
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ID: 4346741 pcs
thumb image of 4.6ct Oval Cabochon Green Jadeite (ID: 434674)
4.64ct Jadeite
12.08 x 9.92 x 4.10mm
USD 14.20
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ID: 4166501 pcs
thumb image of 7.6ct Oval Cabochon Cream Star Moonstone (ID: 416650)
7.61ct Star Moonstone
12.01 x 10.18 x 8.32mm
USD 30.44
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ID: 4379061 pcs
thumb image of 4.9ct Oval Facet Violet Amethyst (ID: 437906)
4.88ct Amethyst
12.11 x 9.79 x 7.12mm
USD 24.40
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ID: 4108071 pcs
thumb image of 4.2ct Oval Cabochon Violet Amethyst (ID: 410807)
4.23ct Amethyst
11.98 x 10.01 x 5.13mm
USD 21.15
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ID: 4279851 pcs
thumb image of 4.4ct Oval Facet Yellow Golden Citrine (ID: 427985)
4.43ct Citrine
12.19 x 9.85 x 6.62mm
USD 26.58
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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