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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My first purchase went well. I will purchase more gems in the future.

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Great selection and excellent website.

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The website was very easy to navigate. We appreciated the details about each gem, and the sort and search features of the website were helpful and easy to use.

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Overall Rating -> 10

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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.

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Overall Rating -> 10

Excellent selection of products. Website easy to navigate and make purchases.

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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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Gemstones A-Z

Buy Round Shape 15 mm Gems

1.22 ct Pink Morganite, 7.1 mm Round Cut From Afghanistan

0.34 ct Green Sphene, 5.7 x 3.4 mm Oval Cut From Sri Lanka

8.99 ct Round Cut Smoky Quartz, 13.6 mm From Brazil

0.67 ct Yellow Sphalerite, 5.5 x 4.3 mm Oval Cut From Spain

0.79 ct Blue Kyanite, 5.1 mm Round Cut From Nepal

0.54 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 4.9 mm

1.09 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Untreated Gem, 9.7 x 7.1 mm

4.54 ct Marquise Slice Ruby in Fuchsite, 18.7 x 9 mm From Ethiopia

1.35 ct Pink Morganite, 8.3 x 6.4 mm Oval Cut From Afghanistan

54.13 ct Oval Rose Quartz, 25.8 x 22 mm From South Africa

0.05 ct Black Diamond, 2.2 mm Diamond Cut From India

1.41 ct Oval Cut Strawberry Quartz, 8.2 x 6 mm From Russia

2.23 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 9 x 8.6 mm

15.76 carat Carved Rose Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 16 x 16.7 mm

0.72 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 7 x 5.1 mm

1.13 ct Oval Carnelian, 8.1 x 6.1 mm From India

0.98 ct Loose Yellow Sapphire, 6.5 x 5.2 mm Oval Cut From Tanzania

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

5.84 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.7 x 11.2 mm

19.85 ct Marquise Hematite, 22.9 x 11.4 mm From Brazil

1.58 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.1 x 5 mm

1.12 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from the United States, Natural Untreated Gems, 5.1 x 5.1 mm

16.21 carat Black Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gems, 13.9 x 11.5 mm

1.52 carat Pear Shape Rainbow Moonstone, loose Certified Rainbow Moonstone from India, Natural Untreated Gems, 4.8 x 4.7 mm

0.96 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 6.9 x 5.2 mm

9.96 ct Oval Larimar, 14.5 x 10.5 mm From the Dominican Republic

4.08 ct Pink Morganite, 10 mm Carved From Afghanistan

1.75 ct Green Sphene, 8 x 6.6 mm Oval Cut From Sri Lanka

19.53 ct Blue Green Turquoise, 20.2 x 15.9 mm Oval Cut From the United States

0.39 ct Loose Yellow Sapphire, 4.1 x 4.1 mm Square Cut From Tanzania

5.02 carat Trillion Mystic Quartz, loose Certified from Brazil, Natural Gems, 9.1 x 9.1 mm

0.62 ct Orange Sphalerite, 4.8 mm Round Cut From Spain

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