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

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it was good

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So many gorgeous stones! The only "complaint" I have is it's difficult to visualize sizes in mm. Perhaps some way to compare in inches?It has been a long time since I bought stones from Gem select, but the process wasn't too difficult.

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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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the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

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Gemstones A-Z

Buy Oval Shape 12x10 mm Gems

1.53 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.7 x 6.3 mm

38.94 carat Oval Checkerboard Nuummite, loose Certified Nuummite from India, Natural Untreated Gem, 28.4 x 22.2 mm

1.79 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.2 mm

3.61 carat Yellow Citrine, Baguette Cut loose Citrine from Brazil, Natural Untreated Gem, 12 x 8.1 mm

12.57 carat Carved Rose Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 21 x 14.5 mm

25.49 carat Pear Jasper, loose Certified Jasper from Mexico, Natural Untreated Gem, 29.5 x 15.5 mm

1.26 carat Red Malaya Garnet, Marquise Cut loose Malaya Garnet from Tanzania, Natural Untreated Gem, 10 x 5 mm

13.47 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 14.1 x 10.1 mm

0.55 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.2 x 4.2 mm

63.94 carat Pear Hematite, loose Certified Hematite from Brazil, Natural Untreated Gems, 23.3 x 16.9 mm

3 ct Green Agate, 16.7 x 9.1 mm Carved From India

2.27 carat Yellow Citrine, Cushion loose Citrine from Brazil, Natural Untreated Gem, 9.6 x 7 mm

0.52 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5 mm

28.46 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 21.4 x 17.2 mm

5.15 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 10.1 x 5.1 mm

26.82 ct Fancy Tiger's Eye Matrix, 22.6 x 19.5 mm From Mexico

3.93 ct Blue Star Sapphire, 7 x 5.1 mm Oval Cut From Thailand

0.49 carat Pear Shape Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.1 x 4.1 mm

1.23 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.3 mm

0.57 ct Loose Pink Spinel, 5.1 x 4.5 mm Cushion Cut From Tanzania

2.94 ct Round Onyx, 7.1 mm From Sri Lanka

7.89 ct Oval Star Moonstone, 13.8 x 11.4 mm From India

4.03 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5 mm

0.53 ct Loose Yellow Sapphire, 5.4 x 4.3 mm Oval Cut From Madagascar

1.16 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm

2.83 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.9 x 782 mm

8.76 ct Green Agate, 19.9 x 10 mm Carved From India

0.8 ct Loose Pink Sapphire, 6.8 x 6.3 mm Odd Shaped From Tanzania

1.06 ct Loose Yellow Sapphire, 7.1 x 5.1 mm Cushion Cut From Tanzania

0.76 ct Loose Trillion Cut Mystic Quartz, 6 x 6 mm From Brazil

3.97 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4 x 4 mm

32.53 carat Pear Rhodonite, loose Certified Rhodonite from Australia, Natural Untreated Gem, 32.3 x 23 mm

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