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.

Read All

Gemstone Information

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10

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

Posted By Skip in November, 2023

Source: Bizrate

Overall Rating -> 10

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023

Source: Bizrate

Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 2023

Source: Bizrate

Overall Rating -> 7

I feel pretty good so far, pending the delivery of the item ordered.

Posted By Steve in November, 2023

Source: Bizrate

Overall Rating -> 10

Very detailed and great pictures

Posted By Alexandrite in November, 2023

Source: Bizrate

Overall Rating -> 10

this was very easy im exited to get my order

Posted By Mr. in April, 2024

Source: Bizrate

Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024

Source: Bizrate

Overall Rating -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 2023

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

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

Posted By Nikki J in September, 2023

Source: Bizrate

Overall Rating -> 10

GemSelect has the Best gems. Clear photos and detailed description helps me make the best choice. I have Never been disappointed by thier quality items.

Posted By Rock Hound in July, 2023

Source: Bizrate

Overall Rating -> 10

Overall, the whole process was just great.

Posted By Thatoneguy in August, 2023

Source: Bizrate

Overall Rating -> 10

I loved the opportunity to shop on a website that I could trust 👍

Posted By Will J. Lover in September, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

Great experience! First time buyer

Posted By Todi89 in February, 2024

Source: Bizrate

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT

183/24-25 Moo 4, Trirat Rd.
T. Chantanimit, A. Muang
Chanthaburi 22000
THAILAND
Phone: 1-800-464-1640
Phone: +66-39601289

STAY IN TOUCH | NEWSLETTER

*You're signing up to receive GemSelect promotional email.

Switch to Mobile Version

Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.

240

Gemstones A-Z

Buy Round Shape 8 mm Gems

3.67 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12.1 x 6.1 mm

27.57 ct Oval Checkerboard Nuummite, 21.4 x 18.1 mm From India

0.9 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 5 x 4 mm

42.48 ct Cushion Chrysocolla, 28.2 x 22.2 mm From Australia

9.67 ct Yellow Moonstone, 14.1 mm Round Cut From India

0.72 carat Heart Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 6.1 x 6 mm

6.82 ct Loose Baguette Labradorite, 9.2 x 7.2 mm From Madagascar

4.05 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 10 x 7.9 mm

3.52 ct Green Agate, 19.1 x 9.5 mm Carved From India

5.07 ct Pink Morganite, 12.7 x 8.9 mm Oval Cut From Afghanistan

0.77 carat Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.3 x 5.1 mm

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

1.73 ct Oval Sillimanite Cat's Eye, 7.7 x 5.7 mm From Madagascar

6.72 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 11 x 9.1 mm

2.65 carat Square Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 3.7 x 3.7 mm

19.59 carat Pear Psilomelane Dendrite, loose Certified Psilomelane Dendrite from Mexico, Natural Untreated Gem, 24 x 21.9 mm

3.01 ct Loose Pink Tourmaline, 8.1 x 6.1 mm Oval Cabochon From Mozambique

2.55 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 8.1 x 6.9 mm

4.54 carat Green Sapphire, Oval loose Sapphire from Madagascar, Natural Gem, 10.8 x 9.1 mm

15.2 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 16.8 x 14.2 mm

7.1 ct Baguette Tiger's Eye, 14.2 x 10.2 mm From Thailand

2.84 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 9.6 x 7.7 mm

4.83 ct Oval Prehnite, 9.4 x 7.1 mm From South Africa

4.67 ct Oval Star Moonstone, 12.8 x 8.2 mm From India

1.77 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.9 x 4 mm

2.47 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm

4.89 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14.2 x 10.2 mm

1.75 carat Yellow Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 9 x 5 mm

0.98 ct Yellow Morganite, 7.9 x 5.9 mm Oval Cut From Afghanistan

6.98 ct Oval Quartz Cat's Eye, 11.7 x 10.2 mm From Sri Lanka

2.59 ct Round Cut Peridot, 4.5 mm From China

0.6 carat Orange Spessartite Garnet, Round loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 4.6 mm

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT