Calibrated 8 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 8 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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Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

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Overall Rating -> 10

Great selection, I love your site! Great product visibility, information, etc.

Posted By John 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

Source: Bizrate

Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

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Overall Rating -> 10

I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

Posted By Ktreva52 in February, 2024

Source: Bizrate

Overall Rating -> 10

Extremely easy to use, and I am fully satisfied with the purchase process.

Posted By Fl_Beachcomber in October, 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

I searched for the item by description and millimeter and had my choice come up and then made the best selection.

Posted By Tim in April, 2024

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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

Source: Bizrate

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

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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 -> 10

Very detailed and great pictures

Posted By Alexandrite in November, 2023

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Overall Rating -> 10

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024

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Overall Rating -> 10

Easy to use,I have spent many hours looking at the site

Posted By Skip 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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Gemstones A-Z

Buy Round Shape 8 mm Gems

2.78 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm

3.75 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gem, 14.7 x 7.2 mm

4.68 ct Asscher Cut Rose Quartz, 9.8 x 9.8 mm From South Africa

18.38 ct Amethyst Geode Slice, 23.5 x 18.6 mm From Brazil

1.21 ct Loose Multicolor Sapphire, 6.2 x 5 mm Cushion Cut From Madagascar

8.23 ct Yellow Quartz, 15.8 x 9 mm Octagon Cut From Brazil

5.45 ct Pink Morganite, 14.8 x 10.5 mm Carved From Afghanistan

0.5 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6 x 4.1 mm

1.75 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 8.6 x 6.9 mm

2.59 ct Orange Andesine Labradorite, 10.2 x 8.2 mm Oval Cut From Congo

2.79 ct Carved Rose Quartz, 13.1 x 9.2 mm From South Africa

1.34 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5.1 mm

1.17 carat Purple Tourmaline, Oval loose from Mozambique, Natural Untreated Gem, 7.6 x 5.7 mm

4.81 carat White Topaz, Princess-Cut loose Topaz from Brazil, Natural Untreated Gems, 3.5 x 3.5 mm

5.57 ct Multicolor Opal Doublet, 18.4 x 7.3 mm Odd Shaped From Australia

5.2 carat White Topaz, Princess-Cut loose Topaz from Brazil, Natural Untreated Gems, 3.6 x 3.6 mm

1.76 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 7.2 x 7 mm

2.59 ct Pink Morganite, 13.6 x 6.2 mm Marquise Cut From Afghanistan

27.14 ct Yellow Quartz, 19 x 19 mm Cushion Checkerboard From Brazil

4.11 ct Pink Morganite, 11.4 x 10.7 mm Trillion Cut From Afghanistan

13.14 ct Asscher Cut Rose Quartz, 14.8 x 14.7 mm From South Africa

0.43 ct Loose White Sapphire, 4.5 mm Diamond Cut From Madagascar

0.6 ct Loose Yellow Sapphire, 4.5 x 4.4 mm Cushion Cut From Tanzania

0.51 ct Octagon Cut Peridot, 5.7 x 3.7 mm From China

2.28 ct Loose Orange Moonstone, 9.1 x 7.1 mm Cushion Cut From India

7.59 carat Pear Pietersite, loose Certified Pietersite from China, Natural Untreated Gems, 16.9 x 11.3 mm

20.45 ct Oval Tiger's Eye, 24.8 x 16.6 mm From Thailand

9.72 ct Round Star Moonstone, 13.2 mm From India

14.58 carat Pear Chalcedony, loose Certified Chalcedony from Brazil, Natural Untreated Gem, 22.2 x 15.4 mm

7.02 ct Oval Star Moonstone, 12.2 x 10 mm From India

1.42 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 10.3 x 7.7 mm

2.54 ct Oval Cut Rainbow Moonstone, 9.1 x 8.8 mm From the United States

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