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

Love gemselect

Posted By Joshua Howard in March, 2024

Source: Bizrate

Overall Rating -> 10

I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

Posted By Ana in September, 2023

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Overall Rating -> 10

The site was easy to shop and the payment was secure. I’m looking forward to receiving my order!

Posted By JAB93 in June, 2023

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Overall Rating -> 10

Excellent experience!

Posted By Steph in April, 2023

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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

Great selection, I love your site! Great product visibility, information, etc.

Posted By John in February, 2024

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Overall Rating -> 10

Very easy. I have purchased a few times before and was satisfied each time. Thank you.

Posted By Ray in December, 2023

Source: Bizrate

Overall Rating -> 7

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 2024

Source: Bizrate

Overall Rating -> 8

I am currently pleased. I like the layout of the website.

Posted By RayPoppa in January, 2024

Source: Bizrate

Overall Rating -> 10

Everything fine.

Posted By Hilario in December, 2023

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Overall Rating -> 10

Easy to find the stones I was looking for. Always good quality stones

Posted By Erin in June, 2023

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Overall Rating -> 10

great. thank you

Posted By Carrotroller in July, 2023

Source: Bizrate

Overall Rating -> 10

I have had and will always have a great time shopping at GemSelect. It's a great web site with great products and great service.

Posted By Apps in November, 2023

Source: Bizrate

Overall Rating -> 10

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

Posted By Chico in May, 2023

Source: Bizrate

Overall Rating -> 10

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

Source: Bizrate

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Gemstones A-Z

Buy 15 ct Gemstones

12.33 carat Green Fluorite, Pear Shape loose Fluorite from India, Natural Untreated Gem, 17.5 x 12.2 mm

0.47 ct Loose Violet Sapphire, 5.2 x 4.3 mm Oval Cut From Tanzania

3.92 ct Green Agate, 10.4 x 8.2 mm Oval Cut From India

0.57 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6 x 4.1 mm

1.52 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 7.6 x 4.7 mm

7.28 ct Orange Moonstone, 14.7 x 14.5 mm Carved From India

6.11 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 11 x 8.9 mm

18.62 ct Carved Prehnite, 15.7 x 9.9 mm From South Africa

3.47 carat Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.2 mm

1.7 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.6 x 4.5 mm

1.79 carat Yellow Citrine, Round loose Citrine from Brazil, Natural Untreated Gem, 8 mm

11.6 ct Loose Oval Lapis Lazuli, 14.6 x 11.1 mm From Afghanistan

0.51 carat Yellow Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 6 x 4 mm

2.33 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.8 x 7.8 mm

0.51 ct Purple Spinel, 4.7 mm Round Cut From Tanzania

6.01 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 10.7 x 8.9 mm

10.66 ct Brown Moonstone, 13.1 x 12.6 mm Carved From India

0.44 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gem, 5 x 3.3 mm

2.98 ct Oval Cut Golden Beryl, 11.4 x 9.2 mm From Brazil

71.96 carat Oval Star Garnet, loose Certified Star Garnet from India, Natural Untreated Gem, 24.7 x 20.1 mm

3.33 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.1 x 9.2 mm

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

5.01 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.2 mm

0.58 ct Loose Pink Sapphire, 5.7 x 4 mm Oval Cut From Madagascar

9.76 ct Star Cut Smoky Quartz, 16.2 x 14.1 mm From Brazil

15.15 carat Black Tourmaline, Cushion loose Tourmaline from Mozambique, Natural Untreated Gem, 15.8 x 13.8 mm

4.61 ct Round Cut Smoky Quartz, 11.7 mm From Brazil

2.42 carat Red Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 8.6 x 7 mm

12.77 carat Pear Charoite, loose Certified Charoite from Russia, Natural Untreated Gem, 24.7 x 11.9 mm

1.29 ct Blue Kyanite, 7.1 x 5.2 mm Oval Cut From Nepal

12.96 ct Oval Pietersite, 26.2 x 16.2 mm From Namibia

45.6 ct Oval Variscite, 39.2 x 26 mm From Australia

Gemstone Information

Gemstone SHOP

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Gemstone EDUCATION

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