Calibrated 14 x 12 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 14 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 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 14x12 mm Gems

9.82 ct Loose Round Agate, 12.5 mm From Indonesia

54.37 ct Square Obsidian, 28.4 x 27.5 mm From Mexico

28.27 ct Oval Obsidian, 29.2 x 21.8 mm From India

7.45 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18 x 9.4 mm

7.42 carat Uvarovite Garnet Drusy, loose Certified Uvarovite Garnet Drusy from Russia, Natural Untreated Gem, 17.5 x 8.9 mm

2.8 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 6.1 x 4.2 mm

33.61 ct Oval Jasper, 32.6 x 23.2 mm From Indonesia

4.46 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 10.1 x 8 mm

4.12 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.9 x 9.7 mm

1.24 ct Yellow Sphene, 6.2 x 5.8 mm Oval Cut From Sri Lanka

0.76 ct Oval Chocolate Opal, 8.1 x 6.2 mm From Ethiopia

0.66 ct Loose Yellow Sapphire, 6.7 x 4.9 mm Oval Cut From Tanzania

14.9 ct Yellow Quartz, 17 x 16.8 mm Carved From Brazil

3.16 ct Loose Oval Star Ruby, 10.6 x 8.1 mm From Madagascar

3.96 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 11.9 x 5.9 mm

4.04 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gem, 10.6 mm

4.71 carat Round Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7.9 mm

3.1 carat Carved Leaf Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 11.4 x 8.8 mm

17.33 ct Yellow Quartz, 14.6 x 14.6 mm Asscher Cut From Brazil

0.77 ct Loose Orange Sapphire, 6.7 x 5 mm Oval Cut From Madagascar

1.71 ct Loose White Sapphire, 4.6 mm Diamond Cut From Madagascar

1.96 ct Yellow Quartz, 8.2 x 7.8 mm Carved From Brazil

0.92 ct Yellow Morganite, 7.9 x 5.7 mm Oval Cut From Afghanistan

23.09 ct Fancy Jasper, 25.1 x 14.8 mm From Indonesia

13.36 ct Loose Oval Labradorite, 17.9 x 13.3 mm From Madagascar

3.07 carat Yellow Citrine, Round loose Citrine from Brazil, Natural Untreated Gems, 8.2 mm

2.51 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.1 mm

3.03 ct Loose Orange Sapphire, 6.1 x 5.1 mm Oval Cut From Tanzania

0.42 ct Loose Violet Sapphire, 5.7 x 4.1 mm Oval Cut From Tanzania

1.12 carat Pear Shape Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 10.2 x 7.1 mm

7.05 ct White Moonstone, 11.9 x 11.3 mm Oval Cut From India

45.92 ct Oval Jasper, 31 x 24.9 mm From Indonesia

Gemstone Information

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