Calibrated 5 mm Natural Loose Gemstones in all shapes: GemSelect

Buy gems by size in millimeters. Some people by gems by color or prize, 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 sizes and shapes, facet cut and cabochon gems available now in the 5 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 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 round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most 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 of various gems, easy to navigate site

Posted By Josh in August, 2023

Source: Bizrate

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

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 -> 10

Found the stone I wanted which was delivered quickly and met expectations.

Posted By GemGrammy in January, 2024

Source: Bizrate

Overall Rating -> 10

Super easy to do business for great products.

Posted By BoBBy in January, 2024

Source: Bizrate

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

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

Convenient selection, arrival on time

Posted By Alin in February, 2024

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 -> 10

The website is easy to search, the variety of gems is excellent and the educational information is interesting and helpful! Love browsing and shopping the GemSelect website!

Posted By Happiness in January, 2024

Source: Bizrate

Overall Rating -> 10

I find the website user friendly.

Posted By Becky in August, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

Had a problem ordering first time. Someone from Gem Select reached out to me and cleared problem and I made purchase.

Posted By Myrtle in February, 2024

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

Gemstones A-Z

Buy 5 mm Gemstones

0.53 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5 x 4.1 mm

2.42 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 11.3 x 7.4 mm

1.55 ct Loose White Sapphire, 4.4 mm Diamond Cut From Madagascar

2.28 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5 mm

2.54 ct Oval Cat's Eye Scapolite, 8.6 x 8 mm From Madagascar

9.94 ct Carved Prehnite, 16.3 x 12.1 mm From South Africa

3.1 ct Multicolor Mystic Quartz, 10 x 6.6 mm Trillion Concave Cut From Brazil

36.39 ct Cushion Jasper, 32.6 x 22.4 mm From Indonesia

5 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gems, 8 x 8 mm

7.28 carat Green Agate, Pear loose Agate from India, Natural Gem, 13 x 12.5 mm

36.39 ct Oval Agate, 23.9 x 19.5 mm From Indonesia

1.94 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.9 x 6.4 mm

1.99 ct Orange Sunstone, 8.7 mm Round Cut From India

1.8 carat Pink Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 8 x 7.1 mm

0.86 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7 x 5 mm

1.99 carat Round Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 2.1 mm

6.97 ct Trillion Pietersite, 16.4 x 14.8 mm From Namibia

3.32 ct Asscher Cut Rose Quartz, 9.3 x 9.2 mm From South Africa

3.77 carat London Blue Topaz, Heart loose Topaz from Brazil, Natural Gem, 9.4 x 9.2 mm

2.74 carat Carved Leaf Ruby, loose Certified Ruby from Madagascar, Natural Gem, 17.8 x 10 mm

1.96 ct Oval Cut Golden Beryl, 8.2 x 6.1 mm From Madagascar

4.57 ct Oval Cat's Eye Opal, 12.2 x 9 mm From Madagascar

1.19 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gems, 6.9 x 5.2 mm

6.14 carat Yellow Citrine, Round loose Citrine from Brazil, Natural Untreated Gem, 12.1 mm

1.76 ct Round Cut Strawberry Quartz, 8 mm From Russia

1.76 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.1 x 6.1 mm

4.29 ct Round Cut Peridot, 5.7 mm From China

1.05 ct Octagon Cut Color-Change Diaspore, 7.3 x 4.7 mm From Turkey

8.43 ct Carved Prehnite, 16.2 x 10.6 mm From South Africa

0.75 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 7.9 x 6.1 mm

0.61 ct Loose Yellow Sapphire, 5 mm Round Cut From Tanzania

1.59 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm

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