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

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024

Source: Bizrate

Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

Source: Bizrate

Overall Rating -> 10

I have received emails for about a year and today is the condition that had me decide on the purchase

Posted By Tim in April, 2024

Source: Bizrate

Overall Rating -> 10

I love your selection of gems. My only complaing is I wish I could put in a page number to return to that page.When there are over 60 pages of gems it is hard to return to a page with a gem I am considering.

Posted By Cahall in March, 2024

Source: Bizrate

Overall Rating -> 10

Selection and purchasing online was very easy

Posted By Aggy in January, 2024

Source: Bizrate

Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 2023

Source: Bizrate

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

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 -> 10

The website is easy to navigate and has a great selection. I am an amateur silver smith casting jewelry with stones

Posted By Jrplunk in April, 2024

Source: Bizrate

Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

Source: Bizrate

Overall Rating -> 10

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

Source: Bizrate

Overall Rating -> 10

I have had and will always have a great time shopping at GemSelect. It's a great web site with great products and great service.

Posted By Apps in November, 2023

Source: Bizrate

Overall Rating -> 9

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

Posted By NoHalalAl 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 -> 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

Gemstones A-Z

Buy Round Shape 8 mm Gems

7.33 ct Fancy Fire Agate, 15.7 x 10 mm From Mexico

2.61 carat Blue Sapphire, Oval Cabochon loose Sapphire from Madagascar, Natural Gems, 4 x 3.2 mm

0.49 ct Loose Yellow Sapphire, 4.1 x 4.1 mm Cushion Cut From Tanzania

6.18 ct Oval Malachite, 12.2 x 10.2 mm From Congo

20.1 ct Loose Blue Green Turquoise, 22 x 15.9 mm Oval Cut From the United States

10.45 ct Cushion Boulder Opal, 26.9 x 9.6 mm From Australia

0.75 ct Loose Yellow Sapphire, 4.6 x 4.6 mm Cushion Cut From Tanzania

2.72 ct Loose Princess Cut Sapphire, 2.9 x 2.9 mm From Tanzania

1.37 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.5 x 4.8 mm

7.84 ct Orange Moonstone, 9.9 x 9.8 mm Carved From India

0.71 carat Blue Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 4.5 x 4.4 mm

4.4 ct Odd Shaped Druzy Variscite, 16.3 x 12.2 mm From China

1.28 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.5 x 6.1 mm

7.41 ct Baguette Labradorite, 11.9 x 10.1 mm From Madagascar

8.06 ct Oval Cut Strawberry Quartz, 12.1 x 9.9 mm From Russia

4.95 ct Asscher Cut Rose Quartz, 10.4 x 10.3 mm From South Africa

7.15 ct Oval Strawberry Quartz, 12.5 x 10.5 mm From Russia

3.19 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gem, 9.9 x 7.9 mm

0.97 ct Loose Pink Tourmaline, 6.1 mm Round Cabochon From Mozambique

5.37 ct Octagon Cut Smoky Quartz, 13 x 10.1 mm From Brazil

1.58 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.8 x 6.4 mm

4.59 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

0.84 carat Yellow Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 7.8 x 5.9 mm

4.13 ct Round Checkerboard Smoky Quartz, 8.2 mm From Brazil

2.24 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.3 x 6.3 mm

3.72 ct Yellow Quartz, 11.6 x 11.5 mm Carved From Brazil

16.08 ct Blue Green Turquoise, 16.6 x 14.9 mm Oval Cut From the United States

2.01 ct Yellow Andesine Labradorite, 8.8 x 6.9 mm Oval Cut From Congo

1.22 ct Cushion Cut Color-Change Diaspore, 10.8 x 4.5 mm From Turkey

2.8 ct Loose Yellow Sapphire, 4.9 mm Round Cut From Tanzania

1.7 ct Orange Sunstone, 8.8 x 7 mm Oval Cut From India

17.96 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 23.3 x 17.2 mm

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