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

15.4 carat Swiss Blue Topaz, Carved Fruit loose Topaz from Brazil, Natural Gem, 21.5 x 10.9 mm

0.47 ct Loose Yellow Sapphire, 4.7 x 4.7 mm Heart Cut From Tanzania

0.73 ct Octagon Cut Color-Change Diaspore, 6.2 x 4.5 mm From Turkey

3.01 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15 x 7.1 mm

5.66 ct Yellow Moonstone, 11.2 x 9.2 mm Oval Cut From India

1.39 ct Loose Orange Sapphire, 5.1 mm Round Cut From Tanzania

2.42 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.1 mm

2.94 ct Marquise Concave Cut Smoky Quartz, 17.9 x 7 mm From Brazil

1.98 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.4 x 7 mm

0.51 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6 x 4 mm

1.24 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.3 x 5.9 mm

18.91 ct Green Amazonite, 32.5 mm Pencil Cut From Madagascar

2.13 ct Cushion Cut Peridot, 8.8 x 7.4 mm From Myanmar

1.13 ct Orange Moonstone, 6 x 5.9 mm Cushion Cut From India

1.17 ct Oval Cut Chrysoberyl, 7.5 x 5.4 mm From Sri Lanka

2.5 carat Pink Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gems, 6.6 mm

2.36 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 10.1 x 5.1 mm

2.22 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 11.8 x 7.2 mm

9.43 ct Green Amazonite, 8.2 mm Round Cut From Madagascar

15.28 ct Round Labradorite, 12.3 mm From Madagascar

18.09 ct Cushion Jasper, 28.1 x 13.2 mm From Indonesia

1.35 carat Marquise Cut Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 13.9 x 6.6 mm

1.27 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 9.9 x 7.7 mm

2.79 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 4.8 x 3 mm

23.2 ct Oval Jasper, 29 x 20.4 mm From Indonesia

10.63 ct Odd Shaped Rainbow Pyrite, 18.1 x 13.6 mm From Russia

30.31 ct Baguette Maw-Sit-Sit, 17 x 14.9 mm From Myanmar

23.16 carat Blue Green Aquamarine, Oval loose Aquamarine from Madagascar, Natural Untreated Gem, 23.2 x 17.8 mm

0.75 ct Loose Yellow Sapphire, 5.1 mm Round Cut From Tanzania

0.6 ct Oval Cut Fire Opal, 7.9 x 6.1 mm From Mexico

0.65 ct Loose Orange Sapphire, 4.6 x 4.5 mm Cushion Cut From Tanzania

0.65 ct Orange Sphalerite, 4.8 mm Round Cut From Spain

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