Calibrated 6 x 6 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 6 mm x 6 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

Everything fine.

Posted By Hilario in December, 2023

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Overall Rating -> 10

Easy to find the stones I was looking for. Always good quality stones

Posted By Erin in June, 2023

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Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

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Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 2023

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Overall Rating -> 10

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023

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Overall Rating -> 10

Very easy. I have purchased a few times before and was satisfied each time. Thank you.

Posted By Ray in December, 2023

Source: Bizrate

Overall Rating -> 7

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 2024

Source: Bizrate

Overall Rating -> 10

Pleasant.

Posted By Mk in November, 2023

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Overall Rating -> 10

Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

Posted By Ray in February, 2024

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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

Gem Select has gems at afffordable prices.

Posted By George in March, 2024

Source: Bizrate

Overall Rating -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023

Source: Bizrate

Overall Rating -> 10

It was easy to navigate and I hope that the gem is as nice as the picture

Posted By 1 in April, 2024

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

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

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Gemstones A-Z

Buy Square Shape 6x6 mm Gems

6.8 carat Swiss Blue Topaz, Carved Leaf loose Topaz from Brazil, Natural Gem, 15 x 11.9 mm

10.89 ct Round Rutile Quartz, 11 mm From India

0.93 ct Orange Morganite, 7.9 x 5.9 mm Oval Cut From Afghanistan

2.37 ct Yellow Apatite, 9.7 x 8 mm Oval Cut From Madagascar

0.59 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 11.3 x 2.8 mm

2.42 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.2 mm

1.3 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 6 x 6 mm

0.45 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 4.1 x 4.1 mm

1.02 carat Cushion Buff Top Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 5.1 x 5.1 mm

4.74 ct Loose Multicolor Mystic Quartz, 9.1 mm Round Concave Cut From Brazil

1.53 ct Yellow Beryl, 9.1 x 6.9 mm Oval Cut From Brazil

3.65 ct Round Checkerboard Smoky Quartz, 8 mm From Brazil

3.07 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 9.9 mm

1.67 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 4.9 x 4.9 mm

2.31 carat Blue Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 4.6 mm

17.16 ct Oval Pietersite, 21.6 x 17.1 mm From Namibia

4.09 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.1 mm

1.13 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.1 x 4 mm

2.54 carat Yellow Citrine, Cushion loose Citrine from Brazil, Natural Untreated Gem, 11.2 x 6.3 mm

0.54 ct Loose Violet Sapphire, 4.9 x 3.1 mm Oval Cut From Tanzania

1.14 ct Oval Black Opal, 9 x 7.3 mm From Ethiopia

1.75 carat Oval Peridot, loose Certified Peridot from China, Natural Untreated Gems, 7.1 x 5.1 mm

2.16 ct Oval Rutile Quartz, 8.1 x 6.1 mm From India

2.67 ct Round Prehnite, 6.6 mm From South Africa

6.22 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.1 x 9 mm

30.46 ct Oval Hematite, 24.4 x 17.4 mm From Brazil

3.8 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 9.9 mm

0.6 ct Loose Round Pietersite, 5.1 mm From Namibia

1.54 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 8.6 x 8.2 mm

89.31 carat Blue Aquamarine, Pear Shape loose Aquamarine from India, Natural Gem, 37.6 x 30.2 mm

0.54 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 7.5 x 3.7 mm

28.26 carat Oval Tiger's Eye, loose Certified Tiger's Eye from Thailand, Natural Untreated Gem, 27.2 x 17.2 mm

Gemstone Information

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Gemstone EDUCATION

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