Calibrated 12 x 10 mm Oval Shape Natural Loose Gemstones: GemSelect

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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Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

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Gemstones A-Z

Buy Oval Shape 12x10 mm Gems

1.73 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12 x 6 mm

0.9 carat Yellow Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 5.2 mm

0.74 ct Blue Green Apatite, 6.7 x 4.4 mm Oval Cut From Madagascar

0.63 carat Pink Sapphire, Heart loose Sapphire from Tanzania, Natural Gem, 5.1 x 5.1 mm

0.46 carat Green Sapphire, Cushion loose Sapphire from Tanzania, Natural Gem, 4.2 x 4.1 mm

0.84 carat Pink Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6 mm

10.87 ct Oval Coral, 19.2 x 15.2 mm From Indonesia

2.84 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 9.2 x 7.3 mm

4.63 ct Loose Oval Cut Strawberry Quartz, 12.1 x 10.1 mm From India

4.06 ct Blue Star Sapphire, 7 x 5.2 mm Oval Cut From Thailand

12.42 carat Cameo Mother of Pearl, loose Certified Mother of Pearl from China, Natural Gem, 24.9 mm

22 ct Green Jade, 27.6 x 12.9 mm Carved From Myanmar

3.18 ct White Moonstone, 9 mm Round Cut From India

10.45 ct White Quartz, 15.2 x 15 mm Asscher Cut From Brazil

19.39 ct Oval Rose Quartz, 18.9 x 13.3 mm From South Africa

4.7 ct Oval Cat's Eye Scapolite, 11.4 x 8.5 mm From Madagascar

2.47 ct Yellow Beryl, 11.1 x 8.7 mm Oval Cut From Brazil

18.6 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 34.4 x 12.7 mm

152.1 ct Yellow Quartz, 35.7 x 30.2 mm Oval Portuguese Cut From Brazil

28.34 carat Pear Hematite, loose Certified Hematite from Brazil, Natural Untreated Gem, 24 x 16 mm

4 ct Yellow Agate, 10.7 x 9.4 mm Oval Cut From India

30.08 ct Square Jasper, 24.3 x 24 mm From Indonesia

4.51 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.1 mm

1.35 ct Loose Yellow Sapphire, 5 mm Round Cut From Tanzania

1.31 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7 x 5.2 mm

30.59 carat Pear Moss Agate, loose Certified Moss Agate from India, Natural Untreated Gem, 32.5 x 22.8 mm

17.75 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.1 x 14.1 mm

16.81 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 26.5 x 13.3 mm

8.85 ct Yellow Quartz, 15.9 x 13.7 mm Star Cut From Brazil

17.05 ct Loose Oval Bloodstone, 20.7 x 14.2 mm From Madagascar

6.64 ct Asscher Cut Rose Quartz, 11.1 x 11.1 mm From South Africa

8.16 ct Baguette Malachite, 12.1 x 9.9 mm From Congo

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