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

Great experience! First time buyer

Posted By Todi89 in February, 2024

Source: Bizrate

Overall Rating -> 10

Super easy to do business for great products.

Posted By BoBBy in January, 2024

Source: Bizrate

Overall Rating -> 10

I have used GemSelect for several years and plan to shop more in the further. This is a good source of information on gemstones. I love looking at and learning about them. Lot more than I ever knew existed.

Posted By Bikerwalrus in October, 2023

Source: Bizrate

Overall Rating -> 10

Everything was fine.

Posted By Matt in March, 2024

Source: Bizrate

Overall Rating -> 10

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

Source: Bizrate

Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

Source: Bizrate

Overall Rating -> 10

Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

Posted By Dee in September, 2023

Source: Bizrate

Overall Rating -> 8

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 The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024

Source: Bizrate

Overall Rating -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 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 have good experience

Posted By Ginnie in September, 2023

Source: Bizrate

Overall Rating -> 9

GemSelect has a fantastic assortment of Semi-precious stones. I have not found any other web site with the variety you have.

Posted By RobDill in August, 2023

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru in December, 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

Overall Rating -> 10

it was good

Posted By Bobk in January, 2024

Source: Bizrate

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THAILAND
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Gemstones A-Z

Buy 15 ct Gemstones

4.6 ct Fancy Fire Agate, 13.6 x 8.4 mm From Mexico

6.62 ct Baguette Tiger's Eye, 12.3 x 10.2 mm From Thailand

23.74 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18.3 x 18.2 mm

0.69 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 5.9 x 4.1 mm

0.97 carat Blue Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 4.5 mm

0.54 carat Yellow Citrine, Cushion loose Citrine from Brazil, Natural Untreated Gem, 5.2 x 5.1 mm

7.82 carat Black Tourmaline, Baguette Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.6 x 9.3 mm

1.26 ct Orange Sphalerite, 6.5 mm Round Cut From Spain

12.15 ct Oval Rainbow Moonstone, 17.8 x 13.2 mm From the United States

48.37 ct Oval Jasper, 30.5 x 23.2 mm From Indonesia

1.17 ct Loose Pear Pietersite, 11.1 x 5.9 mm From Namibia

17.18 ct Loose Pear Labradorite, 20.4 x 14.9 mm From Madagascar

2.65 ct Blue Kyanite, 8.2 x 6.2 mm Oval Cut From Nepal

2.36 ct Oval Cut Strawberry Quartz, 8.2 x 6.3 mm From Russia

26.28 ct Square Hematite, 15.3 x 15.1 mm From Brazil

1.36 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5.1 mm

1.46 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gems, 6.1 x 6.1 mm

13.43 ct Oval Serpentine, 22.9 x 15 mm From the United States

152.1 ct Yellow Quartz, 35.7 x 30.2 mm Oval Portuguese Cut From Brazil

54 ct Odd Shaped Charoite, 39.1 x 28 mm From Russia

3.6 ct Round Checkerboard Smoky Quartz, 8 mm From Brazil

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

1.84 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.3 x 6.9 mm

23.62 ct Druzy Citrine, 25 x 15.5 mm From Uruguay

9.78 carat Black Tourmaline, Cushion loose Tourmaline from Mozambique, Natural Untreated Gem, 13.3 x 12.1 mm

3.88 ct Green Jade, 11.8 x 9.9 mm Oval Cut From Myanmar

4.22 carat Trillion Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5.2 x 5 mm

0.71 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from the United States, Natural Untreated Gem, 7.1 x 5 mm

9 ct Rainbow Pyrite, 16.7 x 15.6 mm From Russia

1.49 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5 mm

1.65 carat Pink Malaya Garnet, Oval loose Malaya Garnet from Tanzania, Natural Untreated Gem, 8.1 x 5.9 mm

6.7 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 14.3 mm

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

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