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

Always have good experience

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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 -> 9

So many gorgeous stones! The only "complaint" I have is it's difficult to visualize sizes in mm. Perhaps some way to compare in inches?It has been a long time since I bought stones from Gem select, but the process wasn't too difficult.

Posted By Ktreva52 in February, 2024

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Overall Rating -> 10

I’ve enjoyed purchasing stones from this site. It’s convenient and fairly priced.

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Overall Rating -> 9

I have been buy from you for years

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Overall Rating -> 10

Selection ability was straightforward and easy.

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Overall Rating -> 10

Perfect size I was looking for and great price

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Overall Rating -> 10

Great Job today! No issues!

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Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

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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

Great selection of various gems, easy to navigate site

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Overall Rating -> 10

Love gemselect

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Overall Rating -> 10

Selection and purchasing online was very easy

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An it was good.

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Overall Rating -> 10

Easy to use,I have spent many hours looking at the site

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Gemstones A-Z

Buy Round Shape 15 mm Gems

1.11 ct Yellow Sphene, 7.1 x 5.4 mm Oval Cut From Sri Lanka

6.1 ct Oval Tiger's Eye, 10.2 x 8.2 mm From Thailand

1.45 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gems, 6.1 x 6 mm

1.21 ct Loose Yellow Sapphire, 4.9 mm Round Cut From Tanzania

16.43 ct Oval Maw-Sit-Sit, 15.2 x 12.8 mm From Myanmar

1.26 ct Oval Black Opal, 6 x 4.2 mm From Ethiopia

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

0.66 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5.1 mm

15.07 ct Brown Moonstone, 16 x 12.8 mm Carved From India

3.96 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12 x 5.8 mm

4.42 ct Yellow Apatite, 10.4 x 9.3 mm Octagon Cut From Madagascar

3.74 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm

6.35 ct Oval Star Moonstone, 12.3 x 9.7 mm From India

1.01 ct Oval Sillimanite Cat's Eye, 6.4 x 6.2 mm From Madagascar

0.2 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

19.08 ct Cushion Fossil Coral, 16.3 x 12.5 mm From Indonesia

1.97 carat White Topaz, Marquise Cut loose Topaz from Brazil, Natural Untreated Gem, 11.9 x 6 mm

1.05 ct Yellow Beryl, 7 mm Round Cut From Madagascar

6.14 carat Swiss Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 9.1 mm

1.6 ct Oval Tiger's Eye, 8.4 x 6.3 mm From Thailand

2.31 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.1 mm

7.41 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 10.1 x 10 mm

0.53 ct Loose Yellow Sapphire, 3.2 x 3.2 mm Princess Cut From Tanzania

0.57 ct Loose Yellow Sapphire, 4.5 x 4.5 mm Cushion Cut From Tanzania

3.33 ct Oval Cut Strawberry Quartz, 9 x 6.8 mm From Brazil

1.55 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 21.7 x 3.1 mm

1.23 ct Marquise Cut Peridot, 7.9 x 4.1 mm From China

4.1 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from India, Natural Untreated Gems, 6.9 x 6.9 mm

2.3 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.2 mm

1.57 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 18.1 x 3.8 mm

3.36 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.8 x 3.7 mm

1.75 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 7.1 mm

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