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

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

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

I found it to be easy to browse and easy to use

Posted By Kyle in December, 2023

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

Found the stone I wanted which was delivered quickly and met expectations.

Posted By GemGrammy in January, 2024

Source: Bizrate

Overall Rating -> 10

GemSelect has the Best gems. Clear photos and detailed description helps me make the best choice. I have Never been disappointed by thier quality items.

Posted By Rock Hound in July, 2023

Source: Bizrate

Overall Rating -> 9

Overall good, shipping prices just seem a little on the high side.

Posted By Steve in August, 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 -> 10

I had a great time searching all the lovely stones. This is my first precious loose stone purchase for my own work. I chose sapphire, and found some lovely briolettes. I wanted 3, but this set of 4 was perfect. Everything was quick and easy, and I'm excited.

Posted By Phoenix in February, 2024

Source: Bizrate

Overall Rating -> 10

Found what I was looking for

Posted By Rian in June, 2023

Source: Bizrate

Overall Rating -> 10

Extremely easy to use, and I am fully satisfied with the purchase process.

Posted By Fl_Beachcomber in October, 2023

Source: Bizrate

Overall Rating -> 10

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.

Posted By Ktreva52 in February, 2024

Source: Bizrate

Overall Rating -> 10

I love your selection of gems. My only complaing is I wish I could put in a page number to return to that page.When there are over 60 pages of gems it is hard to return to a page with a gem I am considering.

Posted By Cahall in March, 2024

Source: Bizrate

Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

Source: Bizrate

Overall Rating -> 10

Easy and fast

Posted By Mark in February, 2024

Source: Bizrate

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THAILAND
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Phone: +66-39601289

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Gemstones A-Z

Buy 15 ct Gemstones

10.57 ct Marquise Ruby-Zoisite, 23.7 x 11.8 mm From Tanzania

2.94 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 8.8 mm

4.96 carat Swiss Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 8.1 mm

0.23 ct Yellow Diamond, 4 mm Diamond Cut From India

1.44 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 5.1 mm

0.84 carat White Topaz, Oval loose Topaz from Brazil, Natural Untreated Gem, 7 x 5.1 mm

3.58 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gem, 9 mm

16.68 ct Carved Rose Quartz, 19.8 x 19.8 mm From Brazil

2.64 carat Sky Blue Topaz, Marquise Cut loose Topaz from Brazil, Natural Gems, 10.3 x 5.1 mm

25.2 ct Multicolor Fossil Coral, 19.7 x 10.6 mm Cushion Cut From Indonesia

1.07 ct Green Sphene, 6.8 x 5.7 mm Oval Cut From Sri Lanka

1.42 ct Oval Cat's Eye Moonstone, 7.5 x 6.7 mm From India

3.89 ct Loose Trillion Concave Cut Mystic Quartz, 8.3 x 8.2 mm From Brazil

0.86 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 6 x 4.1 mm

2.56 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.1 mm

0.42 carat Orange Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Gem, 5.1 x 4 mm

1.34 ct Green Sphene, 7.3 x 6.3 mm Oval Cut From Sri Lanka

0.91 carat Green Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 7.2 x 5.1 mm

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

4.53 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14.3 x 10.2 mm

1.35 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 11.9 x 6.1 mm

39.08 ct Oval Rose Quartz, 23 x 19 mm From South Africa

0.29 carat Round Cabochon Emerald, loose Certified Emerald from Colombia, Natural Gem, 4.1 mm

2.82 ct Loose Cushion Cut Mystic Quartz, 7 x 6.9 mm From Brazil

2.14 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gem, 8.6 x 5.5 mm

5.37 ct Pink Morganite, 12 x 9.8 mm Oval Cut From Afghanistan

14.83 carat Cushion Ammolite, loose Certified Ammolite from Canada, Natural Gem, 19.6 x 15.6 mm

0.8 ct Loose Round Pietersite, 5.8 mm From Namibia

0.25 ct Brown Diamond, 4 mm Diamond Cut From India

2.54 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gems, 7 x 5 mm

6.89 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 10.1 x 8.2 mm

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

Gemstone Information

Gemstone SHOP

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WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT