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

3.25 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 6.9 mm

10.69 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 11.4 x 14.9 mm

0.69 ct Oval Cut Fire Opal, 8 x 6.1 mm From Mexico

3.36 ct Blue Star Sapphire, 6.7 x 5 mm Oval Cut From Thailand

0.82 carat Pear Shape Chrysoberyl, loose Certified Chrysoberyl from Sri Lanka, Natural Untreated Gem, 7.1 x 5.1 mm

10.83 ct White Quartz, 13.5 x 13.5 mm Asscher Cut From Brazil

1.03 ct Octagon Cut Peridot, 7 x 5 mm From China

19.73 ct Round Labradorite, 17.1 mm From Madagascar

4.57 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 12 x 10 mm

4.47 ct Oval Prehnite, 10.9 x 8.1 mm From South Africa

3.33 ct Round Rutile Quartz, 7.3 mm From India

16.36 ct Round Labradorite, 16.9 mm From Madagascar

4.4 ct Pink Morganite, 10.8 mm Round Cut From Afghanistan

2.14 ct Pink Morganite, 8.1 x 6 mm Oval Cut From Afghanistan

1.5 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 10.1 x 8.1 mm

3.17 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9.1 mm

0.35 ct Blue Kyanite, 3.8 mm Round Cut From Nepal

32.02 ct Loose Pencil Cut Jasper, 36.2 x 10.6 mm From Indonesia

1.86 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6 x 4.2 mm

8.21 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 13.9 x 8.1 mm

1.34 ct Oval Carnelian, 8.1 x 6.2 mm From India

1.13 ct Green Sphene, 6.3 x 5.6 mm Oval Cut From Sri Lanka

1.92 carat Oval Peridot, loose Certified Peridot from China, Natural Untreated Gems, 7.1 x 5 mm

0.8 ct Oval Cut Peridot, 7 x 5.1 mm From China

4.48 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm

1.79 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 7 mm

3.76 ct Diamond Cut Andalusite, 3.6 mm From Brazil

0.88 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6 x 4.1 mm

0.55 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gems, 4.9 x 3.1 mm

15.99 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gem, 26.3 x 17.4 mm

1.66 ct Loose Round Cut Lapis Lazuli, 6 mm From Afghanistan

6.03 ct Pink Kunzite, 10.4 x 9.7 mm Cushion Cut From Afghanistan

Gemstone Information

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