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

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

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Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

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I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

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Love the variety of stones, sizes and the prices

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Gemstones A-Z

Buy Round Shape 15 mm Gems

10.77 carat Blue Green Turquoise, Pear loose Turquoise from the United States, Natural Gem, 19.3 x 14 mm

1.5 ct Round Prehnite, 7.2 mm From South Africa

11.57 ct Oval Coral, 17 x 13.5 mm From Indonesia

0.38 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gem, 6.1 x 3.9 mm

1.2 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.1 x 4.1 mm

14.02 ct Yellow Quartz, 16.1 x 16 mm Octagon Concave Cut From Brazil

25.83 ct Druzy Citrine, 21.5 x 15.4 mm From Uruguay

30.02 ct Violet Lepidolite, 38.3 x 10.2 mm Pencil Cut From the United States

2.32 ct Yellow Sillimanite, 9.1 x 7.1 mm Oval Cut From Sri Lanka

3.09 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.3 x 10.1 mm

1.35 ct Oval Cut Peridot, 7.9 x 6 mm From China

39.55 ct Drilled Sphere Tiger's Eye Matrix, 10.5 mm From India

7.21 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 14 x 10 mm

1.54 ct Loose Purple Sapphire, 6.8 x 5.4 mm Cushion Cut From Tanzania

2.01 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.3 x 6.8 mm

15.91 ct Baguette Tiger's Eye Matrix, 19.9 x 9.3 mm From Mexico

1.45 ct Oval Cut Peridot, 8.1 x 6 mm From China

4.28 carat White Topaz, Diamond-Cut loose Topaz from Brazil, Natural Untreated Gem, 10 mm

4.13 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.1 x 4 mm

0.7 ct Oval Cut Fire Opal, 8.1 x 6.1 mm From Mexico

0.95 carat Orange Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 8 x 4.1 mm

1.95 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7.2 x 5.1 mm

10.78 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 17.8 x 12.3 mm

0.9 ct Loose Round Cut Lapis Lazuli, 6.1 mm From Afghanistan

1.65 ct Loose Orange Moonstone, 7.8 x 7.8 mm Cushion Cut From India

2.78 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 9.8 mm

2.55 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gems, 10 x 4.1 mm

4.9 ct Gray Jadeite, 18.7 x 8.8 mm Marquise Cut From Myanmar

1.93 ct Pink Morganite, 8.4 x 8 mm Trillion Cut From Afghanistan

10.38 carat Black Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 15.6 x 12.6 mm

1.09 ct Blue Kyanite, 5.7 x 3.8 mm Oval Cut From Nepal

2.11 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 17.2 x 3.9 mm

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