Buy Natural 6 Carat Loose Gemstones

Buy gems by carat weight. Shop from our extensive range of beautiful, natural 6 carat gems. Browse the largest selection of natural loose colored gemstones available in 6 carats. Our large gemstone selection includes many popular gem types, such as amethyst, aquamarine, topaz, emerald and garnet, and lesser-known gems, including sphene, ruby in fuchsite and sphalerite. 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 'peridot' to see all of our 6-carat peridot gems. Select 'blue' to shop for 6-carat blue 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

I am excited for my first order, search tools were a great help to find the sapphire I needed for my next project! Thank you

Posted By Sue in April, 2023

Source: Bizrate

Overall Rating -> 10

LOVE YOU GUYS. YOU CARRY EVERY GEMSTON I WANT. THE PRICE IS GREAT,THE PRODUCT IS OUTSTANDING,AND THE SERVICE CANT BE BEET.

Posted By APPS in April, 2024

Source: Bizrate

Overall Rating -> 9

Everything was good but since I am still new I was surprised at how small the stones where.

Posted By Js in May, 2023

Source: Bizrate

Overall Rating -> 10

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023

Source: Bizrate

Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

Source: Bizrate

Overall Rating -> 10

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024

Source: Bizrate

Overall Rating -> 9

Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

Posted By Erick in July, 2023

Source: Bizrate

Overall Rating -> 10

Easy to find products I want. I've ordered several times from gem select and never any problems. Will order again. Thank you.

Posted By Ray in January, 2024

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

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

Posted By Kate in December, 2023

Source: Bizrate

Overall Rating -> 10

first time here sooooooooooo we will seeeee!!!!! so far so good!!!!!!

Posted By Seastone 56 in October, 2023

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 -> 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

Trustworthy site. I've had several good experiences with company. Products always have met my expectations. Thank you.

Posted By Ray in February, 2024

Source: Bizrate

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Gemstones A-Z

Buy 6 ct Gemstones

18.36 ct Blue Green Amazonite, 28.2 x 18.7 mm Oval Cut From Madagascar

6.46 carat Round Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 7.9 mm

1.89 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 4.6 x 3.5 mm

3.64 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 10.9 x 9.1 mm

1.17 ct Square Cut Smoky Quartz, 6.1 x 6 mm From Brazil

9.17 ct Oval Pietersite, 14.1 x 10.2 mm From Namibia

0.49 ct Loose Orange Sapphire, 5.6 x 4 mm Oval Cut From Tanzania

0.85 ct Green Sphene, 7 x 4.8 mm Oval Cut From Sri Lanka

2.02 ct Blue Apatite, 5 x 4 mm Oval Cut From Madagascar

3.6 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 11.6 x 7.9 mm

2.47 carat Blue Green Fluorite, Pear Shape loose Fluorite from India, Natural Untreated Gem, 9.7 x 7.1 mm

3.31 carat Pear Prehnite, loose Certified Prehnite from South Africa, Natural Untreated Gem, 10.3 x 7.3 mm

3.49 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 11.7 x 9.9 mm

0.84 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5 x 4.9 mm

0.37 carat Pear Shape Iolite, loose Certified Iolite from Madagascar, Natural Untreated Gem, 5 x 4.9 mm

38.11 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gem, 39.7 x 28.2 mm

2.63 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 8.8 x 6.8 mm

1.82 ct Blue Kyanite, 8.1 x 6.2 mm Oval Cut From Nepal

11.51 carat Pear Rutile Quartz, loose Certified Rutile Quartz from India, Natural Untreated Gem, 18.9 x 14.1 mm

21.24 ct Oval Rose Quartz, 18.1 x 13.1 mm From South Africa

4.48 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14 x 10.1 mm

2.28 ct Round Cut Strawberry Quartz, 7.2 mm From Russia

14.04 ct Black Spinel, 12.1 x 11.8 mm Heart Rose Cut From Thailand

1.87 ct Loose Marquise Pietersite, 13.4 x 5 mm From Namibia

2.19 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 14 x 7.1 mm

1.73 ct Pink Morganite, 7.7 mm Round Cut From Afghanistan

1 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 6 x 6 mm

9.82 carat Pear Quartz With Marcasite, loose Certified Quartz With Marcasite from Brazil, Natural Untreated Gem, 18 x 13.6 mm

7 carat Blue Aquamarine, Emerald Cut loose Aquamarine from Madagascar, Natural Untreated Gem, 15.4 x 7.5 mm

6.11 ct Octagon Cut Smoky Quartz, 13 x 9.9 mm From Brazil

6.76 ct Green Jadeite, 16.3 x 12.9 mm Oval Cut From Myanmar

0.46 ct Blue Kyanite, 3.6 mm Round Cut From Nepal

Gemstone Information

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