Calibrated 10 x 10 mm Square Shape Loose Natural Gemstones from Ge...

Some people by gems by color or prize, 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 Square shapes, facet cut and cabochon gems available now in 10 mm 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 meant nor 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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Overall Rating -> 10

The website is well organized and works fast forward and back. Plenty of filters. Each gem is described in detail and you receive the one pictured. Gem material info and sources available. I would like to see more specifics on sources besides country- at least region or state and in the US with Turquiose which mine. Thanks!

Posted By Orchidisle in February, 2024

Source: Bizrate

Overall Rating -> 10

Excellent experience!

Posted By Steph in April, 2023

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Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024

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Overall Rating -> 10

Everything fine.

Posted By Hilario in December, 2023

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Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

This is only the second time I have ordered from GemSelect. I am a prolific gemstone collector and I wish I had found this site sooner!

Posted By Beachcomber in September, 2023

Source: Bizrate

Overall Rating -> 7

I feel pretty good so far, pending the delivery of the item ordered.

Posted By Steve in November, 2023

Source: Bizrate

Overall Rating -> 10

Selection and purchasing online was very easy

Posted By Aggy in January, 2024

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Overall Rating -> 8

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

Posted By Ralli in August, 2023

Source: Bizrate

Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

Source: Bizrate

Overall Rating -> 10

Convenient selection, arrival on time

Posted By Alin in February, 2024

Source: Bizrate

Overall Rating -> 10

No issues at all. It was great.

Posted By LJXK in May, 2023

Source: Bizrate

Overall Rating -> 10

I find the website user friendly.

Posted By Becky in August, 2023

Source: Bizrate

Overall Rating -> 10

Great selection

Posted By GHS40 in December, 2023

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Gemstones A-Z

Buy Square Shape 10x10 mm Gems

1.87 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.9 x 5 mm

6.82 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 15.3 mm

1.27 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.3 x 5.9 mm

2.72 ct Oval Malachite, 8.4 x 6.2 mm From Congo

4.9 carat Briolette Tourmaline, loose Certified Tourmaline from Mozambique, Natural Untreated Gems, 6.3 mm

1.24 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 13.2 x 4.2 mm

0.15 carat Round Emerald, loose Certified from Colombia, Natural Gem, 3.5 mm

26.94 ct Yellow Quartz, 19.5 x 16.8 mm Oval Portuguese Cut From Brazil

12.57 carat Pear Seraphinite, loose Certified Seraphinite from Russia, Natural Untreated Gems, 14 x 10 mm

3.15 ct Oval Cut Andalusite, 5.8 x 4.1 mm From Brazil

0.89 carat Orange Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 7.9 x 6.1 mm

4.45 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 12.1 x 6 mm

3.97 ct Round Checkerboard Smoky Quartz, 8.1 mm From Brazil

1.92 ct Cushion Cut Peridot, 7.8 x 7 mm From Myanmar

7.74 ct Oval Quartz Cat's Eye, 12.1 x 10.8 mm From Sri Lanka

49.45 carat Bi-color Fluorite, Oval loose Fluorite from India, Natural Untreated Gem, 25.3 x 18.8 mm

0.49 ct Loose Pink Sapphire, 5.1 x 4.2 mm Oval Cut From Madagascar

3.02 ct Diamond Cut Andalusite, 3.5 mm From Brazil

0.48 ct Round Cut Chrysoberyl Cat's Eye, 3.7 mm From Sri Lanka

1.21 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 6.1 x 6.1 mm

3.73 ct Green Agate, 19.3 x 9.6 mm Carved From India

0.94 carat Green Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 7.7 x 6 mm

4.77 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 9.1 x 7.1 mm

0.64 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 7.8 x 4.4 mm

34.97 ct Cushion Obsidian, 30.2 x 18.5 mm From Mexico

6.31 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 13.8 x 9.8 mm

27.92 carat Pear Fossil Coral, loose Certified Fossil Coral from Indonesia, Natural Untreated Gems, 22 x 14 mm

15.28 carat Black Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 15.9 x 13.7 mm

3.84 carat White Zircon, Diamond-Cut loose Zircon from Colombia, Natural Gems, 6.8 mm

0.89 carat Green Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 7.1 x 5.2 mm

8.79 ct Asscher Cut Rose Quartz, 12.5 x 12.2 mm From South Africa

1.22 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 7 x 5.2 mm

Gemstone Information

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