Buy 15 mm Round Calibrated Gemstones from GemSelect

How are 15 mm Round Shape Gems Sold ?

GemSelect’s Round Shape Calibrated 15mm gems for new designs or replacements available at competitive prices. Our selections are available as single stones, pairs, and lots in this large calibrated size. Select from Faceted Gemstones, Drilled-Spheres, and Sphere-Ball Cut Jewels in a variety of both semiprecious and precious stones.

We have a large selection of Cabochons available in 15 mm Round and Calibrated Size too!

What are Good Designs for 15mm Round Gems?

We suggest using round gemstones of this size in necklace designs, earrings, large rings, bracelets, and as pendants or elements to a larger arrangement. Our selections include many different materials with varying properties and design applications and always at affordable prices.

What are Good Ideas for GemSelects 15 mm Round Shape?

GemSelect's round stones can create extraordinary pieces when combined in multi-color or single color compositions. A 15mm stone can be striking on its own when used as a pendant enabling the color of the gem and metal used make the beauty in the design. For rings, we find a 15mm center stone in a single stone composition beautiful.

As always, jewelry is the most popular gift for your loved ones as Anniversary gifts, and our quality stones are sure to impress your customers allowing them to find something genuinely stunning for their special occasions. Another excellent idea for all Natural Gemstone Jewelry is Birthstone Gifts; please check out our page for information on which gem type to select.

Details About Calibrated Sizes.

GemSelect’s Round 15mm Calibrated gemstones range in size from 15.5mm - 14.4mm in all of our selected precious and semi-precious stones. Our inventory includes large amounts of Color-Change Fluorite, Smoky Quartz, Rutile Quartz, and many other unique jewels of this 15mm size.

GemSelect Welcomes Your Questions and Suggestions.

Please contact us if you have any questions, comments, or suggestions directly at help@gemselect.com. Thank you for choosing GemSelect!

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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 -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

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Overall Rating -> 10

Fine. All emails answered. Excellent service. Nice discount added for orders. Briefly, a very good experience.

Posted By C.J. in February, 2024

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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 -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

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Overall Rating -> 10

Very good customer service. I had an issue on my end with shipping and I received a response the next day!

Posted By Orphanboy in December, 2023

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Overall Rating -> 10

Very Good

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Overall Rating -> 10

Easy and fast

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Overall Rating -> 10

Great selection, I love your site! Great product visibility, information, etc.

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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

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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

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Overall Rating -> 10

Super easy to do business for great products.

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Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

Posted By Ralli in August, 2023

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Overall Rating -> 10

My last experience was good, in fact every experience I have had with them has met my expectations or surpassed them. These are really good people to work with.

Posted By Spinach in May, 2023

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Overall Rating -> 10

Great selection

Posted By GHS40 in December, 2023

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Gemstones A-Z

Buy Round Shape 15 mm Gems

2.58 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 10.1 x 7.2 mm

4.31 carat Orange Hessonite Garnet, Square loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 6.9 x 6.7 mm

0.54 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6 x 4.1 mm

3.22 ct Loose Round Pietersite, 10.5 mm From Namibia

1.4 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.5 x 6 mm

1.18 ct Blue Kyanite, 7.2 x 5.2 mm Oval Cut From Nepal

39.89 ct Loose Blue Green Turquoise, 23.8 x 18.8 mm Oval Cut From the United States

2.33 carat Oval Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 5.1 x 3.1 mm

1.51 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 6.8 x 4.9 mm

7.34 ct Green Amazonite, 7.3 x 7.2 mm Cushion Cut From Madagascar

0.82 ct Purple Spinel, 6 x 4.8 mm Oval Cut From Tanzania

8.21 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gems, 15.1 x 7.1 mm

13.34 ct Marquise Jasper, 46 x 11.7 mm From Indonesia

2.78 carat Pear Shape Tsavorite Garnet, loose Certified Tsavorite Garnet from Tanzania, Natural Untreated Gems, 4.1 x 3 mm

4.27 ct Oval Chrysoprase, 12.4 x 8.3 mm From Madagascar

1.05 ct Oval Cut Peridot, 7.8 x 5.8 mm From China

2.86 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.2 x 5.1 mm

18.33 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 20.1 x 15.2 mm

1.79 ct Oval Cut Black Opal, 10.4 x 8 mm From Ethiopia

18.71 ct Oval Serpentine, 22.1 x 17.9 mm From the United States

2.88 ct Black Star Sapphire, 9 x 6.6 mm Oval Cut From Thailand

7.53 ct Asscher Cut Rose Quartz, 12.4 x 12.3 mm From South Africa

11.19 ct Diamond Cut Smoky Quartz, 15.4 mm From Brazil

22.09 ct Fancy Fossil Coral, 21.3 x 12.7 mm From Indonesia

37.88 ct Oval Pietersite, 26.3 x 19.6 mm From China

6.95 carat Cushion Ruby, loose Certified Ruby from Madagascar, Natural Gem, 10.2 x 10.1 mm

5.82 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18 x 9.1 mm

1.81 ct Blue Kyanite, 8.1 x 6.1 mm Oval Cut From Nepal

0.96 ct Oval Cut Peridot, 7.1 x 5 mm From China

7.1 ct Baguette Rainbow Moonstone, 15.4 x 7.7 mm From the United States

2.36 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 4.9 mm

5.44 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 9 x 8.9 mm

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