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

2.36 carat Blue Green Aquamarine, Pear Shape loose Aquamarine from Madagascar, Natural Untreated Gem, 11.3 x 7.3 mm

28.19 ct Square Hematite, 17.5 x 17.2 mm From Brazil

10.88 carat Sky Blue Topaz, Carved Fruit loose Topaz from Brazil, Natural Gem, 19.6 x 11.9 mm

1.64 ct Oval Prehnite, 8.5 x 7.2 mm From South Africa

7.04 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 11.5 x 9.4 mm

0.48 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5 x 3.9 mm

0.51 ct Loose Yellow Sapphire, 4.3 x 4.2 mm Cushion Cut From Tanzania

20.82 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 16.7 x 14.8 mm

0.91 ct Blue Kyanite, 7.2 x 5.1 mm Oval Cut From Nepal

1.76 ct Oval Prehnite, 8 x 7.1 mm From South Africa

6.67 ct Diamond Cut Smoky Quartz, 12.4 mm From Brazil

10.56 ct Carved Rose Quartz, 16.3 x 16.3 mm From Brazil

0.18 ct Square Cut Iolite, 2.6 x 2.5 mm From Madagascar

4.13 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 10 x 8.2 mm

3.22 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 7.9 x 5 mm

15.1 carat Blue Aquamarine, Oval loose Aquamarine from Madagascar, Natural Untreated Gem, 19.8 x 14.9 mm

3.37 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 7 mm

3.35 ct Marquise Rutile Quartz, 13.8 x 6.9 mm From India

0.95 ct Pink Spinel, 6.2 x 5.2 mm Cushion Cut From Tanzania

3.17 carat Multicolor Mystic Quartz, Pear Concave Cut loose Mystic Quartz from Brazil, Natural Gem, 12.1 x 8.1 mm

1.37 ct Yellow Beryl, 6.8 x 4.9 mm Oval Cut From Madagascar

0.58 ct Loose Pink Sapphire, 6.5 x 4.4 mm Oval Cut From Madagascar

1.5 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gems, 6.1 x 6.1 mm

12.09 carat Black Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 15.2 x 13.4 mm

0.89 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 6.9 x 6.8 mm

0.76 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 5.9 x 4 mm

2.04 ct Orange Sunstone, 9 mm Round Cut From India

0.65 ct Oval Cut Peridot, 6.7 x 4.8 mm From China

2.85 ct Round Cut Strawberry Quartz, 9.1 mm From Russia

0.14 carat Baguette Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 3.1 x 2.7 mm

7.58 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 15 x 7.2 mm

1.94 carat Blue Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 4.4 mm

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