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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Gemstone Information

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Overall Rating -> 10

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023

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Overall Rating -> 10

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

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Overall Rating -> 10

I purchase all of my stones from GemSelect! They're the best I've found for both selection and value.

Posted By Terry in June, 2023

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Overall Rating -> 9

Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

Posted By Erick in July, 2023

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Overall Rating -> 10

Gem Select has gems at afffordable prices.

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Overall Rating -> 10

Website was incredibly easy and fast to use. Navigation and product outlay was simple and enjoyable to browse. Thank you and have a blessed day!

Posted By Devi in October, 2023

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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.

Posted By Meow in June, 2023

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Overall Rating -> 10

Love Gem select. great gems for the price. Can't beet them

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Overall Rating -> 10

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Great experience! First time buyer

Posted By Todi89 in February, 2024

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Overall Rating -> 10

blessed be the lord blessed be the saved blessed be the work blessed be the traveled i write down my good times in these stones and when times are gray i can still se the sunny days refract in these stones

Posted By Kickbass.2 in May, 2023

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Overall Rating -> 9

It went well

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Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

Posted By Mr. Bezel in July, 2023

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Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

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Gemstones A-Z

Buy Round Shape 7 mm Gems

1.3 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 9.8 x 5.1 mm

17.66 ct Blue Green Grandidierite, 18.2 x 12.8 mm Oval Cut From Madagascar

0.72 ct Loose Yellow Sapphire, 5.7 x 4.3 mm Oval Cut From Madagascar

1.57 carat Yellow Citrine, Heart Checkerboard loose Citrine from Brazil, Natural Untreated Gem, 8.1 x 7.8 mm

3.12 carat Blue Green Fluorite, Oval loose Fluorite from India, Natural Untreated Gem, 10.2 x 6.3 mm

1.52 carat Orange Hessonite Garnet, Square loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6 x 6 mm

1.42 ct Marquise Cut Peridot, 6.9 x 3.5 mm From China

2.45 ct Oval Tiger's Eye, 8.1 x 6.1 mm From Thailand

1.82 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 7 mm

0.91 ct Octagon Cut Color-Change Diaspore, 6.3 x 4.3 mm From Turkey

7.12 ct Oval Star Moonstone, 12.7 x 10.1 mm From India

12.46 ct Odd Shaped Druzy Azurite, 19.1 x 15.2 mm From the United States

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

0.19 ct Blue Apatite, 3.6 mm Round Cut From Madagascar

4.09 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12.1 x 6 mm

3.71 ct Oval Prehnite, 7.6 x 5.7 mm From South Africa

11.3 ct Fancy Pietersite, 23.4 x 7.2 mm From Namibia

1.02 ct Round Labradorite, 6 mm From Madagascar

13.33 ct Baguette Maw-Sit-Sit, 16.3 x 10.4 mm From Myanmar

1.18 ct Loose Pink Tourmaline, 6.3 mm Round Cabochon From Mozambique

7.54 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 15 x 11 mm

6.37 ct Yellow Apatite, 13.3 x 9.8 mm Octagon Cut From Madagascar

0.74 ct Octagon Cut Color-Change Diaspore, 5.8 x 4 mm From Turkey

8.92 ct Black Spinel, 10 x 9.8 mm Trillion Rose Cut From Thailand

2.76 ct Yellow Sphene, 9.5 x 7.9 mm Oval Cut From Sri Lanka

0.7 carat Pear Shape Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7.1 x 4.8 mm

1.67 ct Orange Sunstone, 9.1 x 7 mm Oval Cut From India

0.5 ct Loose Yellow Sapphire, 4.7 x 4.7 mm Heart Cut From Tanzania

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

1.37 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8 x 6 mm

33.78 ct Oval Pietersite, 30.2 x 22.1 mm From Namibia

1.24 ct Oval Sillimanite Cat's Eye, 7.8 x 5.4 mm From Madagascar

Gemstone Information

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