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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (288): Oval Shape 12x10 mm Gems Clear All
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ID: 4344941 pcs
4.23ct Jadeite
11.60mm x 9.73mm x 3.88mm
USD 12.94
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ID: 3501091 pcs
3.75ct Agate
12.06mm x 9.98mm x 5.59mm
USD 7.50
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ID: 4108091 pcs
4.11ct Amethyst
12.15mm x 9.92mm x 4.86mm
USD 20.55
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ID: 4167701 pcs
5.30ct Star Moonstone
12.23mm x 10.17mm x 5.57mm
USD 21.20
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ID: 4067751 pcs
6.43ct Maw-Sit-Sit
12.04mm x 9.60mm x 6.50mm
USD 19.29
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ID: 4108021 pcs
3.56ct Amethyst
12.14mm x 10.01mm x 3.98mm
USD 17.80
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ID: 4220461 pcs
5.67ct Topaz
11.84mm x 9.73mm x 6.65mm
USD 28.35
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ID: 4396871 pcs
5.96ct Sapphire
12.12mm x 9.88mm x 5.71mm
USD 20860.00
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ID: 4379061 pcs
4.88ct Amethyst
12.11mm x 9.79mm x 7.12mm
USD 24.40
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ID: 3872791 pcs
6.32ct Topaz
12.14mm x 10.12mm x 6.91mm
USD 37.92
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ID: 4308641 pcs
5.38ct Moonstone
12.46mm x 10.13mm x 6.02mm
USD 10.60
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ID: 4220901 pcs
6.60ct Topaz
12.10mm x 10.09mm x 6.66mm
USD 33.00
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ID: 4181041 pcs
6.35ct Star Moonstone
12.34mm x 9.67mm x 7.07mm
USD 25.40
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ID: 4346741 pcs
4.64ct Jadeite
12.08mm x 9.92mm x 4.10mm
USD 14.20
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ID: 3828891 pcs
4.86ct Jadeite
12.41mm x 9.87mm x 4.81mm
USD 34.02
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ID: 4106602 pcs
10.76ctw Amethyst
12.05mm x 9.96mm x 6.08mm
USD 53.80
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ID: 4258741 pcs
5.28ct Topaz
12.08mm x 9.90mm x 5.85mm
USD 31.68
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ID: 4258711 pcs
5.60ct Topaz
12.15mm x 9.98mm x 6.13mm
USD 33.60
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ID: 4285471 pcs
4.80ct Citrine
11.69mm x 9.75mm x 7.42mm
USD 28.80
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ID: 3792801 pcs
5.50ct Peridot
11.84mm x 9.91mm x 5.77mm
USD 352.00
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ID: 4107631 pcs
4.67ct Amethyst
12.24mm x 10.17mm x 4.85mm
USD 23.35
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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