Calibrated 9 x 9 mm Square Shape Loose Natural Gemstones from GemS...

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 Square shapes, facet cut and cabochon gems available now in 9 mm x 9 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

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

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Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

Posted By NoHalalAl in March, 2024

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Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 2023

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Overall Rating -> 8

I am currently pleased. I like the layout of the website.

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Overall Rating -> 10

Everything fine.

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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

Best place to buy gem stones, dont bother shopping else where. Prices are great, no issues with shipping and customer service is the best.

Posted By J in December, 2023

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Overall Rating -> 9

Everything was good but since I am still new I was surprised at how small the stones where.

Posted By Js in May, 2023

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Overall Rating -> 9

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.

Posted By Ktreva52 in February, 2024

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Overall Rating -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 2023

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Overall Rating -> 10

It was easy to search and find what i wanted

Posted By Gunner in November, 2023

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Overall Rating -> 10

Very detailed and great pictures

Posted By Alexandrite in November, 2023

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Overall Rating -> 10

I have used Gem Select many times over the past 10 years and have always been happy with the product & services

Posted By Ordain in August, 2023

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Overall Rating -> 9

Good interaction with site

Posted By Brick in September, 2023

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Overall Rating -> 10

Gem Select has gems at afffordable prices.

Posted By George in March, 2024

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Gemstones A-Z

Buy Square Shape 9x9 mm Gems

2.21 carat Blue Sapphire, Briolette with Hole loose Sapphire from Madagascar, Natural Gems, 4.8 mm

0.75 ct Green Sphene, 6 x 4.8 mm Oval Cut From Sri Lanka

21.35 carat Pear Rainbow Moonstone, loose Certified Rainbow Moonstone from the United States, Natural Untreated Gem, 21.4 x 17.9 mm

4.98 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14.8 x 10 mm

10.48 ct Octagon Cut Smoky Quartz, 13.3 x 13.2 mm From Brazil

1.12 ct Blue Kyanite, 7.2 x 5.2 mm Oval Cut From Nepal

0.13 ct Black Diamond, 2.2 x 2.1 mm Princess Cut From India

18.85 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 21.3 x 16.1 mm

1.01 carat Orange Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 8 x 4.1 mm

2.62 carat Carved Leaf Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 12.5 x 8.2 mm

0.65 carat Blue Sapphire, Pear Shape loose Sapphire from Sri Lanka, Natural Gem, 5.6 x 4.8 mm

18.52 carat Blue Green Amazonite, Pear loose Amazonite from Madagascar, Natural Untreated Gem, 25.5 x 20.9 mm

4.5 carat Pear Prehnite, loose Certified Prehnite from South Africa, Natural Untreated Gem, 13.1 x 8.4 mm

0.93 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.2 x 5.1 mm

1.06 carat Yellow Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 6.5 x 5.7 mm

7.65 carat Carved Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14 x 11.9 mm

2.22 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gems, 9.8 x 6.6 mm

0.87 ct Gray Spinel, 5.9 x 4.6 mm Cushion Cut From Tanzania

0.48 carat Purple Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 6 x 4.8 mm

28.4 ct Yellow Quartz, 21.8 x 16.2 mm Oval Portuguese Cut From Brazil

5.95 ct Oval Cat's Eye Opal, 13.7 x 9.1 mm From Madagascar

0.53 ct Loose White Sapphire, 4.8 mm Round Cut From Tanzania

2.37 ct Octagon Cut Peridot, 5.8 x 4 mm From China

0.71 carat Heart Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gem, 6.7 x 5.8 mm

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

3.75 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gems, 8.1 x 6.1 mm

1.31 ct Oval Cut Peridot, 7.6 x 5.6 mm From China

7.66 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 16 x 11.9 mm

3.84 ct Loose Oval Cut Strawberry Quartz, 12 x 9.9 mm From India

4.54 carat Blue Green Zircon, Pear Shape loose Zircon from Cambodia, Natural Gem, 9.9 x 8.1 mm

2.82 carat Blue Sapphire, Briolette with Hole loose Sapphire from Madagascar, Natural Gems, 5.6 mm

4.24 ct Yellow Agate, 11.5 x 10.1 mm Oval Cut From India

Gemstone Information

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