Buy 13 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 13 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 have used GemSelect for several years and plan to shop more in the further. This is a good source of information on gemstones. I love looking at and learning about them. Lot more than I ever knew existed.

Posted By Bikerwalrus in October, 2023

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Overall Rating -> 10

LOVE YOU GUYS. YOU CARRY EVERY GEMSTON I WANT. THE PRICE IS GREAT,THE PRODUCT IS OUTSTANDING,AND THE SERVICE CANT BE BEET.

Posted By APPS in April, 2024

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Overall Rating -> 9

I have been buy from you for years

Posted By JohnA in May, 2023

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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

Love the variety of stones, sizes and the prices

Posted By Dorita in March, 2024

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Overall Rating -> 10

Convenient selection, arrival on time

Posted By Alin in February, 2024

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Overall Rating -> 10

The website is easy to navigate and the images are incredible.

Posted By Lindsy in October, 2023

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Overall Rating -> 10

Love Gem select. great gems for the price. Can't beet them

Posted By Apps in September, 2023

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Overall Rating -> 10

Easy to find products I want. I've ordered several times from gem select and never any problems. Will order again. Thank you.

Posted By Ray in January, 2024

Source: Bizrate

Overall Rating -> 10

It was easy to search and find what i wanted

Posted By Gunner in November, 2023

Source: Bizrate

Overall Rating -> 9

I was in the market for birthstones for a lil gift project im doing. I'm no expert in gems or what not but the quality as far as i can tell seems to be spot on.

Posted By PixelComposer in January, 2024

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Overall Rating -> 10

Excellent site.

Posted By Boru in December, 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 love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024

Source: Bizrate

Overall Rating -> 10

Hello: You do have good website. Vast majority of folks would buy the Gems for its spiritual, physical / energy level, emotional level positive aspects. You have only very brief mention of this aspect of each Gem ..may be you can add little bit more about ways to leverage the beneificial effect of each gems i.e. some practical tips.ThanksRupen Patel

Posted By EarthDeep in February, 2024

Source: Bizrate

Gemstones A-Z

Buy Round Shape 13 mm Gems

0.48 carat Pink Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6 x 4.9 mm

112.39 ct Oval Rainbow Moonstone, 47.3 x 36.1 mm From the United States

1 ct Blue Kyanite, 7 x 5.3 mm Oval Cut From Nepal

0.41 ct Loose Pink Sapphire, 5 x 4 mm Oval Cut From Madagascar

1.19 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.2 mm

4.37 ct Yellow Quartz, 7.2 x 7.2 mm Carved From Brazil

3.81 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12 x 10.1 mm

91.06 carat Black Tourmaline, Cushion loose Tourmaline from Mozambique, Natural Untreated Gem, 31.2 x 26.4 mm

4.47 carat Sky Blue Topaz, Heart loose Topaz from Cambodia, Natural Gem, 10.3 x 10.1 mm

4.46 ct Green Jade, 12.1 x 9.9 mm Oval Cut From Myanmar

0.85 ct Yellow Beryl, 8 x 6 mm Oval Cut From Madagascar

4.38 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 6 mm

5.48 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7.2 x 5.2 mm

17.58 ct Oval Rose Quartz, 19.8 x 14.1 mm From South Africa

3.8 ct Round Labradorite, 7.2 mm From Madagascar

5.04 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 13.9 x 9.9 mm

0.38 carat Blue Sapphire, Trillion-Cut loose Sapphire from Madagascar, Natural Gem, 4.4 x 4.3 mm

2.81 carat Yellow Citrine, Cushion loose Citrine from Brazil, Natural Untreated Gem, 9.5 x 7.8 mm

1.87 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.1 x 3.1 mm

25.78 ct Round Checkerboard Labradorite, 20.2 mm From Madagascar

12.77 ct Black Spinel, 12.1 mm Round Rose Cut From Thailand

17.9 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 20.9 x 20 mm

73.43 carat Pear Moss Agate, loose Certified Moss Agate from India, Natural Untreated Gem, 52.1 x 34.7 mm

2.17 carat Emerald Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6 x 4 mm

1.15 carat Orange Hessonite Garnet, Pear Shape loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.1 x 5.8 mm

29.07 ct Cushion Fossil Coral, 19.5 x 13.5 mm From Indonesia

3.48 ct Oval Prehnite, 9.2 x 6.5 mm From South Africa

5.06 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gem, 10 x 10 mm

9.81 ct Trillion Pietersite, 17.6 x 16.1 mm From Namibia

2.02 carat Orange Zircon, Diamond-Cut loose Zircon from Tanzania, Natural Untreated Gem, 7 mm

4.3 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.9 x 5.2 mm

1.18 carat Orange Hessonite Garnet, Square loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 5 x 5 mm

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