Calibrated 16 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 16 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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I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

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Gemstones A-Z

Buy Oval Shape 16x12 mm Gems

9.31 carat Black Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 14.9 x 12.2 mm

4.06 ct Brown Moonstone, 6.7 x 6.5 mm Carved From India

3.32 ct Oval Cat's Eye Scapolite, 9.5 x 7.4 mm From Madagascar

9.7 ct Fancy Fire Agate, 19.9 x 11.8 mm From Mexico

0.57 carat Green Sapphire, Cushion loose Sapphire from Tanzania, Natural Gem, 4.4 x 4.2 mm

6.34 ct Fancy Fire Agate, 21.5 x 7.8 mm From Mexico

1.57 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 8 x 6.1 mm

1.3 ct Purple Spinel, 6.3 x 5.9 mm Cushion Cut From Tanzania

6.73 ct Odd Shaped Druzy Variscite, 24.8 x 12.1 mm From China

1.9 ct Round Cut Strawberry Quartz, 8 mm From Russia

30.59 ct Brown Moonstone, 22.1 x 16.1 mm Oval Cut From India

5.66 ct Fancy Fire Agate, 14.1 x 9.1 mm From Mexico

1.46 ct Yellow Beryl, 7.2 mm Round Cut From Madagascar

0.83 ct Oval Cut Fire Opal, 8.2 x 6.2 mm From Mexico

5.18 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 12.1 x 9.9 mm

1.4 ct Pink Morganite, 7.5 mm Round Cut From Afghanistan

4.41 carat Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.1 mm

28.37 carat Pear Tiger's Eye Matrix, loose Certified Tiger's Eye Matrix from Mexico, Natural Untreated Gem, 33.4 x 19.4 mm

0.62 ct Blue Kyanite, 5.2 mm Round Cut From Nepal

7.56 ct Brown Moonstone, 12.2 x 12 mm Carved From India

23.41 ct Oval Cat's Eye Aquamarine, 17.3 x 14.6 mm From Nigeria

1.05 carat Orange Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 8.2 x 4.1 mm

0.49 ct Orange Sphalerite, 4.8 x 4.6 mm Trillion Cut From Spain

1.59 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 20.6 x 3.3 mm

13.28 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 25.4 x 13.4 mm

4.46 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gems, 7.4 mm

3.55 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 11.2 x 11.1 mm

0.81 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 6.1 x 4.1 mm

14.54 ct Green Amazonite, 9.2 mm Round Cut From Madagascar

20.82 carat Green Opal, Oval loose Opal from Brazil, Natural Untreated Gem, 21 x 17 mm

4.48 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gem, 15.5 x 9 mm

0.2 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.5 mm

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