Untreated Natural Gems: Authentic Genuine Gemstones GemSelect

The idea of treating gemstones is nothing new. Nowadays, gem treatments are a way to supply the global demand for colored gemstones with a very limited 'natural' supply. Many gem types are always, or almost always, treated. The most common gem treatment is heat treatment, which is routinely applied to ruby and sapphire. Other gems such as emerald, tanzanite, blue zircon and blue topaz, are generally treated to produce their distinctive color; in fact it's virtually impossible to buy blue topaz that has not been irradiated. Even for the most expert gem buyers, determining whether a gemstone has been treated or enhanced is not always easy, and usually requires much more than just a jeweler's loupe.

Even with advanced gemological equipment, many treatments are still almost impossible to detect. So for many gem and jewelry buyers, one of the best ways to ensure the gem they're acquiring is completely natural and untreated, is through the selective buying of gemstone varieties that for the most part are never enhanced in any way. If you're searching for untreated gemstones, you may be surprised to discover we carry over 100 different untreated gem types.

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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

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Overall Rating -> 10

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

Posted By Kyle in December, 2023

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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

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Overall Rating -> 9

Good interaction with site

Posted By Brick in September, 2023

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Overall Rating -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023

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Overall Rating -> 8

Many gems at reasonable pricing

Posted By Skittlebird in May, 2024

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Overall Rating -> 10

It was easy to navigate and I hope that the gem is as nice as the picture

Posted By 1 in April, 2024

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Overall Rating -> 10

Love the variety of stones, sizes and the prices

Posted By Dorita in March, 2024

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Overall Rating -> 8

Found on a search engine. Scanned inventory and made a small purchase.

Posted By Ralli in August, 2023

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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

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Overall Rating -> 10

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

Posted By Seastone 56 in October, 2023

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Overall Rating -> 10

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

Posted By Jen in August, 2023

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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

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Overall Rating -> 10

My only complaint is that there are so many beautiful and affordable stones that I get distracted from what I planned to order.

Posted By Phoenix in March, 2024

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

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Gemstones A-Z

Buy Untreated Gemstones

68 ct Green Jade, 42.6 x 19.2 mm Carved From Myanmar

32.92 ct Oval Jasper, 32.4 x 23.3 mm From Indonesia

0.59 ct Octagon Cut Peridot, 6.1 x 4.1 mm From China

1.51 ct Oval Cut Peridot, 7.1 x 5 mm From China

4.72 ct Round Concave Cut Smoky Quartz, 12 mm From Brazil

1.09 ct Blue Kyanite, 6.1 mm Round Cut From Nepal

16.78 ct Loose Pear Cut Amethyst, 21.2 x 16.1 mm From Brazil

15.38 carat Carved Fish Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 19.8 x 15.4 mm

7.39 ct Asscher Cut Rose Quartz, 11.9 x 11.9 mm From South Africa

1.74 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.1 x 4.2 mm

1.89 ct Cushion Cut Golden Beryl, 10 x 7.7 mm From Madagascar

7.58 ct Yellow Quartz, 11.6 x 11.5 mm Asscher Cut From Brazil

7.62 ct Flower Cut Rose Quartz, 13.4 x 13.3 mm From South Africa

2.21 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.2 x 8.1 mm

0.75 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 8.4 x 5.1 mm

3.58 ct Round Checkerboard Smoky Quartz, 8.1 mm From Brazil

0.55 carat Pear Shape Mystic Quartz, loose Certified from Brazil, Natural Gem, 7 x 4.9 mm

16.81 carat Carved Rose Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 17.8 x 18.4 mm

0.81 ct Loose Round Cut Lapis Lazuli, 6.1 mm From Afghanistan

1.01 ct Blue Kyanite, 7.1 x 4.9 mm Oval Cut From Nepal

1.05 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7 x 5.1 mm

2.13 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 9.1 x 7.2 mm

1.44 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.4 x 5.6 mm

3.18 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gems, 6.7 x 6.5 mm

18.09 carat Bi-color Ametrine, Oval loose Ametrine from Brazil, Natural Untreated Gem, 21.3 x 14.2 mm

33.27 ct Round Hematite, 20.1 mm From Brazil

3.22 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 5.2 x 3.3 mm

3.32 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.1 x 8.9 mm

3.43 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 7.1 x 5.1 mm

4.26 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.7 x 7.8 mm

8.45 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 10.1 x 10.2 mm

0.85 ct Blue Kyanite, 6 mm Round Cut From Nepal

Gemstone Information

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