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

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

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Overall Rating -> 10

Great selection of various gems, easy to navigate site

Posted By Josh in August, 2023

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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

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

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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

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Overall Rating -> 10

Best place to buy gem stones, dont bother shopping else where. Prices are great, no issues with shipping and customer service is the best.

Posted By J in December, 2023

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Overall Rating -> 10

Fantastic dealer for quality gemstones. Website is easy to navigate, selection is superb, delivery of purchases is prompt. Easy to select incorrect payment options, however.

Posted By David W in May, 2023

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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

Very detailed and great pictures

Posted By Alexandrite in November, 2023

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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 -> 10

Pleasant.

Posted By Mk in November, 2023

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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

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Overall Rating -> 10

Easy to navigate

Posted By G Funk in December, 2023

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Overall Rating -> 10

great. thank you

Posted By Carrotroller in July, 2023

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Gemstones A-Z

Buy Round Shape 13 mm Gems

2.15 ct Oval Checkerboard Labradorite, 7.2 x 6 mm From Madagascar

33.84 carat Pear Lepidolite, loose Certified Lepidolite from the United States, Natural Untreated Gem, 31.9 x 25.9 mm

50.09 ct Cushion Charoite, 29.6 x 25.6 mm From Russia

0.49 ct Loose Orange Sapphire, 4.2 x 4.2 mm Cushion Cut From Tanzania

6.17 carat Pink Kunzite, Pear Shape loose Kunzite from Afghanistan, Natural Untreated Gem, 13.6 x 9.2 mm

1.35 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 10.2 x 5.1 mm

3.08 carat Carved Leaf Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 13.7 x 8.1 mm

30.1 ct Oval Malachite, 18.1 x 13 mm From Congo

12.12 carat Black Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 19.4 x 9.7 mm

0.7 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 7 x 5.2 mm

1.08 ct Blue Green Apatite, 5.7 x 4.3 mm Oval Cut From Madagascar

2.29 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gem, 7 x 7 mm

2.79 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gems, 9.2 x 7.1 mm

0.54 ct Yellow Beryl, 6.9 x 4.4 mm Oval Cut From Madagascar

2.78 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.1 x 4.1 mm

3.82 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 10 mm

19.81 ct Oval Rose Quartz, 18.6 x 15.7 mm From South Africa

0.98 ct Yellow Beryl, 7.9 x 5.9 mm Oval Cut From Madagascar

1.67 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 8.3 x 8.1 mm

1.51 carat Violet Tanzanite, Round loose Tanzanite from Tanzania, Natural Gem, 7.1 mm

6.44 ct Round Star Ruby, 10.3 mm From Madagascar

0.8 carat London Blue Topaz, Square loose Topaz from Brazil, Natural Gem, 5 x 5 mm

1.78 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7 x 5.1 mm

2.56 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gems, 6 x 4.9 mm

21.95 ct Oval Star Ruby, 16.1 x 14.5 mm From Madagascar

1.7 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.1 x 5.1 mm

4.86 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 10 mm

0.37 ct Loose Orange Sapphire, 5 x 2.6 mm Marquise Cut From Tanzania

4.22 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.1 x 9.2 mm

4.61 carat Yellow Citrine, Round Drilled Checkerboard loose Citrine from Brazil, Natural Untreated Gem, 11 mm

1.68 ct Orange Sunstone, 9 x 6.9 mm Oval Cut From India

12.63 carat Swiss Blue Topaz, Carved Flower loose Topaz from Brazil, Natural Gem, 14.5 x 12.5 mm

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