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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Gemstones A-Z

Buy Oval Shape 12x10 mm Gems

20.27 ct Oval Jasper, 22.4 x 16.9 mm From Indonesia

0.58 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 5.9 x 4.2 mm

3.47 ct Oval Cut Strawberry Quartz, 9.2 x 7.1 mm From Russia

0.33 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.8 mm

5.29 ct Yellow Quartz, 11.9 mm Round Concave Cut From Brazil

2.9 ct Loose Baguette Labradorite, 9.2 x 7.1 mm From Madagascar

2.5 ct Round Cut Strawberry Quartz, 6.9 mm From Russia

33.16 ct Marquise Rainbow Moonstone, 40.6 x 15.1 mm From the United States

1.06 ct Yellow Beryl, 7.8 x 5.9 mm Cushion Cut From Madagascar

6.29 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 11 x 9 mm

2.14 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7.1 x 7 mm

4.97 carat White Topaz, Princess-Cut loose Topaz from Brazil, Natural Untreated Gems, 3.6 x 3.6 mm

2.18 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 5.9 x 4 mm

4.58 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 4.2 x 4.2 mm

1.16 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 9.6 x 7.1 mm

1.92 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.1 x 6 mm

0.76 carat Pear Shape Emerald, loose Certified Emerald from Colombia, Natural Gem, 8.2 x 5 mm

35.49 ct Baguette Jasper, 23.9 x 16.6 mm From Mexico

31.38 ct Blue Sodalite, 43.7 x 10.1 mm Pencil Cut From Australia

32.52 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 24.8 x 15.7 mm

0.77 ct Orange Sphalerite, 5.6 x 5 mm Oval Cut From Spain

5.56 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 10.1 x 8.1 mm

5.79 carat Black Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 13.3 x 10.5 mm

6.26 ct Oval Strawberry Quartz, 9.9 x 8.1 mm From Russia

1.52 carat Orange Hessonite Garnet, Baguette Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.2 x 5.2 mm

0.43 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.9 mm

1.74 ct Oval Cat's Eye Opal, 9.5 x 6.8 mm From Madagascar

2.91 ct Drilled Cut Sphere Smoky Quartz, 5.9 mm From Brazil

4.55 ct Fancy Fire Agate, 14.2 x 7.4 mm From Mexico

1.24 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gems, 6.2 x 5 mm

4.43 ct Yellow Agate, 10.8 x 10.4 mm Oval Cut From India

8.16 ct Yellow Quartz, 12.3 x 12.2 mm Asscher Cut From Brazil

Gemstone Information

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