Calibrated 14 x 12 mm Cushion Shape Loose Natural Gemstones from G...

Some people by gems by color or price, but for many, it is best to buy gems by size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated cushion shapes, facet cut and cabochon gems available now in 14 mm x 12 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 meant nor 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 around 0.3 mm or slightly higher even. This small variance can usually be accommodated for 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 Cushion Cut 14x12 mm Gems

3.1 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.1 x 7.1 mm

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

0.91 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gem, 7.1 x 5.1 mm

3.15 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 9.6 x 6.6 mm

0.64 ct Loose Orange Sapphire, 5.9 x 4 mm Oval Cut From Tanzania

5.42 ct Yellow Quartz, 12 mm Round Concave Cut From Brazil

3.36 carat Green Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 10.8 x 8.9 mm

2.51 carat Diamond-Cut Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 2.7 mm

6.04 ct Round Rutile Quartz, 11 mm From India

2.5 carat Blue Sapphire, Princess-Cut loose Sapphire from Sri Lanka, Natural Gems, 2.1 x 2 mm

26.72 ct White Jadeite, 38.6 x 15.1 mm Carved From Myanmar

8.14 ct Round Cut Smoky Quartz, 13.5 mm From Brazil

18.47 ct Round Labradorite, 17.1 mm From Madagascar

5.76 ct Octagon Concave Cut Smoky Quartz, 12 x 11.7 mm From Brazil

2.63 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.2 mm

0.56 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5.6 x 3.9 mm

1.18 ct Yellow Morganite, 8.2 x 6.1 mm Oval Cut From Afghanistan

4.34 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.3 x 10 mm

14.2 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 14.1 x 10 mm

2.18 ct Round Cat's Eye Scapolite, 8.5 mm From Madagascar

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

3.49 ct Orange Sunstone, 11.1 x 9.1 mm Oval Cut From India

1.72 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.1 mm

1.32 ct Blue Apatite, 5.1 x 4.1 mm Oval Cut From Madagascar

24.87 ct Black Spinel, 17.6 x 8.2 mm Baguette Rose Cut From Thailand

41.05 carat Green Amazonite, Pear loose Amazonite from Madagascar, Natural Untreated Gem, 38 x 24.3 mm

18.36 ct Rainbow Pyrite, 23.4 x 16.5 mm From Russia

9.05 ct Blue Green Grandidierite, 14 x 10.5 mm Oval Cut From Madagascar

2.42 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.2 mm

0.51 ct Loose Yellow Sapphire, 3.3 x 3.3 mm Princess Cut From Tanzania

1.02 carat Orange Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 9 x 5.9 mm

0.87 carat Round Emerald, loose Certified Emerald from Colombia, Natural Gems, 3.7 mm

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