Calibrated 7 mm Round Shape Loose Natural Gemstones from 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 Round shapes, facet cut and cabochon gems available now in 7 mm diameter 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 around 0.3 mm or slightly higher even. This small variance can usually be accommodated for 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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was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

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Gemstones A-Z

Buy Round Shape 7 mm Gems

2.46 ct Fancy Fire Agate, 9.9 x 8.3 mm From Mexico

6.41 carat Pear Black Opal, loose Certified Black Opal from Ethiopia, Natural Gem, 15.4 x 10.5 mm

1.9 ct Loose Pink Tourmaline, 6 mm Round Cabochon From Mozambique

4.63 ct Green Jade, 12 x 9.4 mm Oval Cut From Myanmar

4.92 carat White Topaz, Square loose Topaz from Brazil, Natural Untreated Gems, 4.1 x 4.1 mm

5.57 ct Odd Shaped Druzy Variscite, 17 x 11.5 mm From China

152.1 ct Yellow Quartz, 35.7 x 30.2 mm Oval Portuguese Cut From Brazil

19.78 ct Oval Star Ruby, 15.9 x 13.9 mm From Madagascar

1.28 ct Blue Apatite, 4.9 x 4 mm Oval Cut From Madagascar

14.23 carat Oval Star Garnet, loose Certified Star Garnet from India, Natural Untreated Gem, 11.3 x 11.6 mm

9.06 ct Oval Tiger's Eye, 14 x 10 mm From Thailand

19.58 carat Blue Green Aquamarine, Oval loose Aquamarine from Madagascar, Natural Untreated Gem, 19.4 x 14.8 mm

0.63 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5.1 mm

1.42 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.7 x 6 mm

3.65 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gem, 9.3 mm

8.7 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 13.6 x 11.1 mm

4.29 ct Oval Cut Peridot, 7.6 x 5.5 mm From China

2.17 ct Blue Green Grandidierite, 9 x 6.4 mm Oval Cut From Madagascar

0.51 ct Pink Spinel, 5 x 4.7 mm Cushion Cut From Tanzania

1.4 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 5.8 x 4.2 mm

61.24 ct Oval Tiger's Eye Matrix, 41.4 x 25 mm From Mexico

2.07 ct Loose Orange Moonstone, 8 x 7.9 mm Trillion Cut From India

11.5 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 23.3 x 14 mm

0.54 ct Loose Yellow Sapphire, 3.3 x 3.2 mm Princess Cut From Tanzania

1.81 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 20.2 x 3.4 mm

30.2 ct Drilled Sphere Howlite, 12.8 mm From the United States

2.54 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.1 x 4 mm

2.44 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.9 x 7.8 mm

1.24 carat White Topaz, Princess-Cut loose Topaz from Brazil, Natural Untreated Gem, 6 x 5.9 mm

0.68 ct Loose Pink Sapphire, 6.8 x 5.1 mm Oval Cut From Tanzania

0.44 ct Purple Spinel, 4.9 x 3.9 mm Oval Cut From Tanzania

8.59 ct Octagon Cut Smoky Quartz, 12.3 x 12.3 mm From Brazil

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