Buy Big 15 Carat Natural Gemstones

Buy gems by weight. Shop from our extensive range of beautiful, natural 15-carat gems. Browse the largest selection of natural loose colored gemstones available in 15 carats. Our large gemstone selection includes many popular gem types, such as amethyst, citrine, topaz and turquoise, and lesser-known gems, including ruby-zoisite, ammolite and maw-sit-sit. From here, you can use our filters at the top or on the left-hand side to find gems by gem type, color, shape, cut and so on. For example, select 'tourmaline' to see all of our 15-carat tourmaline gems. Select 'multicolor' to shop for 15-carat multicolor gems. You can also filter by single, pairs, lots, faceted gems or cabochons by using the check boxes at the top.

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Gemstone Information

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Overall Rating -> 10

Excellent experience!

Posted By Steph in April, 2023

Source: Bizrate

Overall Rating -> 9

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

Posted By Mr. Bezel in July, 2023

Source: Bizrate

Overall Rating -> 10

Hello: You do have good website. Vast majority of folks would buy the Gems for its spiritual, physical / energy level, emotional level positive aspects. You have only very brief mention of this aspect of each Gem ..may be you can add little bit more about ways to leverage the beneificial effect of each gems i.e. some practical tips.ThanksRupen Patel

Posted By EarthDeep in February, 2024

Source: Bizrate

Overall Rating -> 10

Love Gem select. great gems for the price. Can't beet them

Posted By Apps in September, 2023

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Overall Rating -> 10

Had a problem ordering first time. Someone from Gem Select reached out to me and cleared problem and I made purchase.

Posted By Myrtle 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

No issues at all. It was great.

Posted By LJXK in May, 2023

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Overall Rating -> 10

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

Posted By Skip in November, 2023

Source: Bizrate

Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

Source: Bizrate

Overall Rating -> 10

The website is very easy to use. The search function, filter and sort functions are very helpful.

Posted By Sboro in August, 2023

Source: Bizrate

Overall Rating -> 10

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024

Source: Bizrate

Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

Source: Bizrate

Overall Rating -> 10

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

Source: Bizrate

Overall Rating -> 8

I did not realize how small the stone was. I cannot use it for the project I wanted, but I am keeping the stone and tru to use it in something else.

Posted By Mark in March, 2024

Source: Bizrate

Overall Rating -> 9

An it was good.

Posted By Miguel in June, 2023

Source: Bizrate

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Gemstones A-Z

Buy 15 ct Gemstones

4.03 ct Oval Prehnite, 9.4 x 8.3 mm From South Africa

7.12 ct Purple Kunzite, 18.4 x 7 mm Octagon Cut From Afghanistan

0.47 ct Loose Orange Sapphire, 4.4 x 4.4 mm Cushion Cut From Tanzania

1.77 ct Loose Orange Sapphire, 4.2 x 4.1 mm Trillion Cut From Tanzania

0.24 carat Round Cabochon Emerald, loose Certified Emerald from Colombia, Natural Gem, 3.5 mm

2.14 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7.1 x 7 mm

27.73 ct Loose Oval Lapis Lazuli, 16.2 x 12.3 mm From Afghanistan

3.17 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.2 x 6.1 mm

0.78 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gem, 6.1 x 6.1 mm

0.29 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.8 mm

10.12 ct Carved Prehnite, 15.7 x 10.5 mm From South Africa

5.05 ct Loose Baguette Labradorite, 9 x 7.2 mm From Madagascar

10.29 ct Oval Serpentine, 20.9 x 13.4 mm From the United States

0.91 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.9 x 5 mm

8.07 carat Yellow Citrine, Round loose Citrine from Brazil, Natural Untreated Gem, 13.8 mm

4.62 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 10 mm

19.38 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 23 x 16.6 mm

0.91 ct Loose Pink Sapphire, 8.2 x 6.5 mm Odd Shaped From Madagascar

31.56 carat Pear Rhodonite, loose Certified Rhodonite from Australia, Natural Untreated Gem, 26.9 x 23.4 mm

0.64 carat Round Grossularite Garnet, loose Certified Grossularite Garnet from Tanzania, Natural Untreated Gem, 4.9 mm

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

14.21 ct Oval Quartz With Marcasite, 20.4 x 14.4 mm From Brazil

7.21 ct Marquise Pietersite, 30.5 x 7.8 mm From Namibia

3.15 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

1.51 ct Orange Moonstone, 6.2 x 6.1 mm Cushion Cut From India

7.44 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 13.9 x 10 mm

3.11 ct Round Onyx, 7.2 mm From Sri Lanka

2.17 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 9 x 7.1 mm

28.14 ct Yellow Quartz, 19.6 x 16.1 mm Oval Portuguese Cut From Brazil

9.46 ct Yellow Apatite, 11.4 x 11.4 mm Asscher Cut From Madagascar

0.94 ct Yellow Sphene, 6.5 x 5.1 mm Oval Cut From Sri Lanka

0.48 ct Baguette Cut Kornerupine, 6.3 x 3.4 mm From Sri Lanka

Gemstone Information

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