Calibrated 12 x 10 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 12 x 10 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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Overall Rating -> 9

An it was good.

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Overall Rating -> 10

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

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Overall Rating -> 8

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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Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

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Overall Rating -> 10

I searched for the item by description and millimeter and had my choice come up and then made the best selection.

Posted By Tim in April, 2024

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Overall Rating -> 10

Very excited and impressed with all your products. Keep up the good work....more different stones to choose from. I like Cabachons.

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Overall Rating -> 10

Hello: You do have good website. Vast majority of folks would buy the Gems for its spiritual, physical / energy level, emotional level positive aspects. You have only very brief mention of this aspect of each Gem ..may be you can add little bit more about ways to leverage the beneificial effect of each gems i.e. some practical tips.ThanksRupen Patel

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Gemstones A-Z

Buy Oval Shape 12x10 mm Gems

7.15 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 5.1 x 5 mm

0.71 carat Blue Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 4.5 x 4.4 mm

2.36 ct Loose White Sapphire, 4.5 mm Diamond Cut From Madagascar

5.86 carat Blue Zircon, Oval loose Zircon from Cambodia, Natural Gem, 9.6 x 7.7 mm

3.23 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm

0.71 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 8.7 x 4.2 mm

10.32 carat Black Tourmaline, Oval loose Tourmaline from Tanzania, Natural Untreated Gem, 14.8 x 11.6 mm

4.6 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.9 x 7.9 mm

0.58 ct Octagon Cut Color-Change Diaspore, 6.3 x 4.2 mm From Turkey

1.91 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 9.1 x 7.2 mm

0.46 ct Loose Orange Sapphire, 6 x 3.9 mm Oval Cut From Tanzania

0.21 ct Black Diamond, 3.5 mm Diamond Cut From India

0.21 ct Blue Apatite, 3.6 mm Round Cut From Madagascar

7.55 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.1 x 9 mm

1.42 carat Violet Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Untreated Gem, 8.8 x 6.3 mm

0.66 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 7.1 x 5 mm

0.44 carat Round Cabochon Emerald, loose Certified Emerald from Colombia, Natural Gem, 4.7 mm

3.35 ct Square Cut Rainbow Moonstone, 3 x 2.9 mm From Sri Lanka

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

1.32 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 9 x 7 mm

16.84 carat Bi-color Ametrine, Pear Shape loose Ametrine from Brazil, Natural Untreated Gem, 21 x 13.8 mm

2.34 ct Loose Yellow Sapphire, 4.9 mm Round Cut From Tanzania

4.56 ct Oval Spectrolite, 10.1 x 8.1 mm From Finland

39 ct Green Jadeite, 28.6 x 22.2 mm Oval Cut From Myanmar

3.26 ct Red Andesine Labradorite, 11 x 8.9 mm Oval Cut From Congo

0.92 ct Oval Cut Peridot, 7.1 x 5.1 mm From China

2.61 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 10 x 7.1 mm

6.46 ct Oval Actinolite Cat's Eye, 13.9 x 11 mm From the United States

1.08 carat Green Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 14.6 x 3.2 mm

1.01 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 7.3 x 7.2 mm

1.45 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 9.7 x 7.8 mm

30.37 ct Baguette Hematite, 18.8 x 16.5 mm From Brazil

Gemstone Information

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