Buy 10 mm Round Calibrated 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 10 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

Great selection and excellent website.

Posted By JBW in October, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 9

Overall good, shipping prices just seem a little on the high side.

Posted By Steve in August, 2023

Source: Bizrate

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 The only "bad" thing that I have to say is that the interface of the site is outdated.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

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

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

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru 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

Great selection

Posted By GHS40 in December, 2023

Source: Bizrate

Overall Rating -> 9

Gemselect is a good website with a great selection of loose gems for sale. The prices are fairly decent, with the only negative being the cut quality of the gems. This is my go to retailer for gemstones and will continue to be, given that the packages arrive in a timely manner.

Posted By Lunchies in April, 2024

Source: Bizrate

Overall Rating -> 10

My last experience was good, in fact every experience I have had with them has met my expectations or surpassed them. These are really good people to work with.

Posted By Spinach in May, 2023

Source: Bizrate

Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

Source: Bizrate

Overall Rating -> 10

My overall interaction with your website was pleasant, as always.

Posted By RJ in April, 2024

Source: Bizrate

Overall Rating -> 9

Easy to use. Limited supply of higher quality gemstones.

Posted By Newfguy in February, 2024

Source: Bizrate

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

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Gemstones A-Z

Buy Round Shape 10 mm Gems

9.62 ct Cushion Pietersite, 19 x 18.1 mm From Namibia

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

19.39 ct Oval Rose Quartz, 18.9 x 13.3 mm From South Africa

3.93 ct Oval Cut Golden Beryl, 10.1 x 7.9 mm From Madagascar

2.18 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 5.6 x 3.8 mm

1.56 ct Orange Moonstone, 7 x 6.9 mm Cushion Cut From India

11.4 ct Asscher Cut Rose Quartz, 13.7 x 13.5 mm From South Africa

2.73 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 9 x 8.8 mm

1.65 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm

7.82 ct Asscher Cut Rose Quartz, 10 x 9.8 mm From South Africa

1.49 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.5 mm

1.48 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.1 x 6.5 mm

3.53 ct Green Apatite, 10.9 x 8.3 mm Oval Cut From Madagascar

1.64 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5 mm

2.55 carat Trillion-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 7 x 6.2 mm

1.05 carat Marquise Cut Ruby, loose Certified Ruby from Myanmar, Natural Gem, 9.2 x 4.4 mm

0.84 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 4.8 x 4 mm

4.84 ct Yellow Quartz, 12.4 x 12.3 mm Carved From Brazil

1.63 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

1.06 ct Cushion Cut Color-Change Diaspore, 6.6 x 5.3 mm From Turkey

8.49 carat Pear Dendritic Agate, loose Certified Dendritic Agate from India, Natural Untreated Gem, 18.2 x 13.1 mm

4.61 ct Round Cut Smoky Quartz, 10.8 mm From Brazil

15.94 ct Round Concave Cut Smoky Quartz, 18 mm From Brazil

12.38 ct Oval Actinolite Cat's Eye, 16.5 x 13.5 mm From the United States

30.12 ct Cushion Fossil Coral, 20.3 x 12.4 mm From Indonesia

1.15 carat Teal Sapphire for Sale, Cushion loose Sapphire from Madagascar, Natural Gems, 5.2 x 4.2 mm

19.96 ct Black Spinel, 10.2 mm Round Rose Cut From Thailand

1.45 ct Yellow Beryl, 8 mm Round Cut From Madagascar

4.71 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 9.8 mm

1.07 ct Yellow Beryl, 8.1 x 6.1 mm Oval Cut From Madagascar

0.18 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.6 mm

3.55 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7.2 x 5.1 mm

Gemstone Information

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