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 -> 8

Many gems at reasonable pricing

Posted By Skittlebird in May, 2024

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Overall Rating -> 10

Great site

Posted By Lord of Bananas in November, 2023

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Overall Rating -> 10

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024

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Overall Rating -> 10

It was easy to search and find what i wanted

Posted By Gunner in November, 2023

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Overall Rating -> 10

The website is easy to navigate and has a great selection. I am an amateur silver smith casting jewelry with stones

Posted By Jrplunk in April, 2024

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Overall Rating -> 10

Everything was fine.

Posted By Matt in March, 2024

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Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

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Overall Rating -> 10

GemSelect has the Best gems. Clear photos and detailed description helps me make the best choice. I have Never been disappointed by thier quality items.

Posted By Rock Hound in July, 2023

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Overall Rating -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

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Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

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Overall Rating -> 10

great. thank you

Posted By Carrotroller in July, 2023

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Overall Rating -> 10

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

Posted By DanM 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

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Overall Rating -> 10

I find the website user friendly.

Posted By Becky in August, 2023

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Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 2023

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Gemstones A-Z

Buy Round Shape 15 mm Gems

1 ct Yellow Beryl, 8.1 x 6.1 mm Oval Cut From Madagascar

2.91 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 10 mm

5.95 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gems, 15.4 x 10.2 mm

16.62 ct Oval Rainbow Moonstone, 23.4 x 16 mm From the United States

5.2 ct Yellow Quartz, 10 x 9.9 mm Carved From Brazil

0.48 ct Yellow Sphalerite, 4.6 mm Round Cut From Spain

3.06 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9 mm

1.4 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.6 x 6 mm

4.26 ct Green Agate, 12 x 8 mm Oval Cut From India

8.87 ct Oval Cut Strawberry Quartz, 11.1 x 9.9 mm From Russia

22.82 ct Cushion Fossil Coral, 16.9 x 12.8 mm From Indonesia

3.95 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.5 x 8.7 mm

3.03 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 7.8 x 4.9 mm

5.66 ct Oval Black Opal, 15.6 x 11.6 mm From Ethiopia

0.45 ct Oval Chrysoberyl Cat's Eye, 5 x 4.5 mm From Sri Lanka

3.33 ct Round Checkerboard Smoky Quartz, 8 mm From Brazil

1.12 carat Pear Shape Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7.2 x 5.1 mm

1.61 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5 mm

2.56 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.1 mm

5.35 ct Yellow Quartz, 12.1 mm Round Concave Cut From Brazil

9.82 ct Loose Oval Agate, 13.7 x 11.5 mm From Indonesia

0.2 ct Square Cut Iolite, 2.6 x 2.6 mm From Madagascar

31.1 ct Oval Checkerboard Labradorite, 28.2 x 21.3 mm From Madagascar

1.97 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.8 x 3.8 mm

3.42 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil

1.73 ct Round Cut Strawberry Quartz, 8 mm From Russia

7.33 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 15.2 x 10.8 mm

24.52 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 20.1 x 15.1 mm

26.41 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 19 x 16.8 mm

32.02 carat Bi-color Ametrine, Pear Shape loose Ametrine from Brazil, Natural Untreated Gem, 24.9 x 20.5 mm

37.53 ct Square Jasper, 26.4 x 25.3 mm From Indonesia

4.26 carat Pink Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gems, 5.2 x 3.3 mm

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