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

Great website and information

Posted By Moonshot in December, 2023

Source: Bizrate

Overall Rating -> 10

The website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

Posted By NJD in September, 2023

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

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

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Overall Rating -> 9

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

Posted By Iggywiggly in January, 2024

Source: Bizrate

Overall Rating -> 10

Very good, very fast, everything as described.

Posted By B in October, 2023

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Overall Rating -> 10

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

Posted By RJ in April, 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

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

Posted By GemGrammy in January, 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

Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

Posted By Ray in February, 2024

Source: Bizrate

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 -> 10

I have used gm select a while ago and was always pleased with the products

Posted By Jaytee in November, 2023

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Overall Rating -> 10

Wonderful selection of gems to choose from. Have made many purchases and was only slightly disappointed once.

Posted By Teemo in February, 2024

Source: Bizrate

Overall Rating -> 10

The site is very easy to use and I will continue to shop here. The quality is superb

Posted By Genia in January, 2024

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Gemstones A-Z

Buy Round Shape 13 mm Gems

0.31 ct Blue Kyanite, 3.7 mm Round Cut From Nepal

2.53 ct Loose Oval Malachite, 9 x 6.6 mm From Congo

8.63 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 13.7 x 8.1 mm

8.48 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 15.3 mm

3.62 ct Round Checkerboard Smoky Quartz, 8 mm From Brazil

0.45 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gem, 5 x 3.1 mm

1.3 carat Pear Shape Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7 x 5.6 mm

1.64 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 10.3 x 7 mm

2.45 ct Loose Orange Moonstone, 13.8 x 7.2 mm Marquise Cut From India

1.97 carat Heart Buff Top Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 8.2 x 8.1 mm

0.7 carat Pear Shape Opal, loose Certified Opal from Ethiopia, Natural Gem, 7.9 x 6.6 mm

4.94 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14 x 9.9 mm

8.12 ct Oval Rutile Quartz, 15.2 x 11.1 mm From India

2.58 ct Round Cut Peridot, 4.6 mm From China

5.24 ct Brown Moonstone, 14 x 13.7 mm Carved From India

7.29 ct Octagon Cut Rose Quartz, 11.4 x 11.3 mm From South Africa

27.45 ct Baguette Hematite, 19.4 x 13.9 mm From Brazil

1.75 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.7 mm

11.93 carat Green Opal, Oval loose Opal from Brazil, Natural Untreated Gem, 19.1 x 14.9 mm

1.74 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 11 x 7.9 mm

0.07 ct Blue Diamond, 2.5 mm Diamond Cut From India

35.04 ct Cushion Obsidian, 28.8 x 23.4 mm From Mexico

2.94 ct Loose Yellow Sapphire, 6.1 x 5.1 mm Oval Cut From Tanzania

3.52 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 8 x 6.5 mm

2.65 carat Heart Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6 x 5.9 mm

20.87 ct Oval Fossil Coral, 19.9 x 12.1 mm From Indonesia

1.91 ct Orange Sunstone, 9.2 x 7.4 mm Oval Cut From India

54.37 ct Square Obsidian, 28.4 x 27.5 mm From Mexico

2.39 ct Oval Cut Golden Beryl, 10.2 x 8 mm From Madagascar

1.17 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 10 x 5.1 mm

5.76 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15.9 x 11.7 mm

0.9 ct Octagon Cut Peridot, 6.8 x 4.8 mm From China

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