Calibrated 8 x 8 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 8 mm x 8 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

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

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Overall Rating -> 10

Great site

Posted By Lord of Bananas in November, 2023

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Overall Rating -> 10

Easy to use.

Posted By Hope in March, 2024

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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

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Overall Rating -> 10

Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

Posted By Dee in September, 2023

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Overall Rating -> 10

The website is easy to navigate and the images are incredible.

Posted By Lindsy in October, 2023

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Overall Rating -> 10

Easy to find products I want. I've ordered several times from gem select and never any problems. Will order again. Thank you.

Posted By Ray in January, 2024

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Overall Rating -> 8

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024

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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 -> 9

Easy to use. Limited supply of higher quality gemstones.

Posted By Newfguy in February, 2024

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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 -> 10

I have used gm select a while ago and was always pleased with the products

Posted By Jaytee in November, 2023

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Overall Rating -> 10

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

Posted By PixelComposer in January, 2024

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Overall Rating -> 10

I have used this site for sseveral years now. All has been great. I started collection gems from GemSelect for years and wanted to collect at least one of most stones. I loved Safers because the mols is a 9 + and they come in every color. This is the best place to buy gems for the assortment and price. Great place to learn about gems too. Sometimes the shipping is a little on the long side. But I would give them a 9.9 out of 10 !!

Posted By Steve in July, 2023

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Overall Rating -> 10

The website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

Posted By NJD in September, 2023

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Gemstones A-Z

Buy Square Shape 8x8 mm Gems

4.24 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 10.9 x 8.9 mm

0.92 ct Oval Cut Fire Opal, 9.4 x 7 mm From Mexico

0.86 ct Cushion Cut Color-Change Diaspore, 6.1 x 5.3 mm From Turkey

1.5 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5.1 mm

27 ct Oval Opal in Matrix, 29.1 x 21 mm From Honduras

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

0.25 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.7 mm

1.1 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm

0.47 ct Loose Purple Sapphire, 5.1 x 4.1 mm Oval Cut From Madagascar

2.48 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.9 x 4.8 mm

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

4.08 ct Orange Sunstone, 9.9 x 8.1 mm Oval Cut From India

7.94 ct Carved Prehnite, 16.6 x 10.3 mm From South Africa

5.81 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 10.1 x 8.2 mm

17.87 ct Trillion Jasper, 21.8 x 16.2 mm From Indonesia

12.17 ct Loose Pear Dendritic Agate, 20.1 x 15 mm From India

5.18 ct Brown Moonstone, 8.4 x 8.4 mm Carved From India

16.09 carat Pear Chalcedony, loose Certified Chalcedony from Brazil, Natural Untreated Gem, 26.1 x 15.7 mm

1.11 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 7.6 x 6 mm

13.56 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 21.5 x 13.8 mm

10.63 ct Odd Shaped Rainbow Pyrite, 18.1 x 13.6 mm From Russia

3.68 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 11.7 x 5.8 mm

4.51 carat Sky Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 8.2 mm

0.15 ct White Diamond, 2.8 mm Diamond Cut From India

29.27 ct Odd Shaped Agate Geode, 21.5 x 17.5 mm From Mexico

5.46 ct Oval Tiger's Eye, 8.2 x 10.2 mm From Thailand

2.72 ct Oval Malachite, 8.4 x 6.2 mm From Congo

0.7 ct Pink Spinel, 5.8 x 4.9 mm Cushion Cut From Tanzania

1.95 ct Oval Carnelian, 9 x 6.8 mm From India

40.86 carat Pear Lepidolite, loose Certified Lepidolite from the United States, Natural Untreated Gem, 39.6 x 22.9 mm

0.53 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5 x 4 mm

1.47 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 7.1 x 7.1 mm

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