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

Very large selection of items and we used the stones to have several pieces of jewelry made for us.

Posted By Joe in January, 2024

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Overall Rating -> 10

The website is easy to search, the variety of gems is excellent and the educational information is interesting and helpful! Love browsing and shopping the GemSelect website!

Posted By Happiness in January, 2024

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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

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Overall Rating -> 7

I feel pretty good so far, pending the delivery of the item ordered.

Posted By Steve in November, 2023

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Overall Rating -> 10

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

Posted By PixelComposer in January, 2024

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Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

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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

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Overall Rating -> 10

Found what I was looking for

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Overall Rating -> 10

It was easy to find the color gem I desired and checkout was simple as well. Very excited to receive my gemstone.

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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.

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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 website is user friendly, has excellent selection. I've always found what I was looking for with Gem Select. When others don't have it they do. And most important, they have a way for you to pay without using PayPal. I cannot use PayPal they closed my account because of no cell phone.

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Overall Rating -> 10

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Gemstones A-Z

Buy Untreated Gemstones

0.64 carat Blue Sapphire, Pear Shape loose Sapphire from Sri Lanka, Natural Gem, 6.1 x 4.9 mm

8.85 ct Cushion Tiger's Eye, 14.1 x 12 mm From Thailand

3.76 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11.1 x 9.1 mm

3.71 carat Green Fluorite, Oval loose Fluorite from India, Natural Untreated Gem, 9.8 x 8.2 mm

4.21 carat Black Tourmaline, Pear Shape loose Tourmaline from Mozambique, Natural Untreated Gem, 12 x 11.5 mm

1.27 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.2 x 5.2 mm

2.54 carat Pear Shape Opal, loose Certified Opal from Australia, Natural Untreated Gem, 15.2 x 9.8 mm

2.63 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.2 x 5.2 mm

5.66 ct Oval Buff Top Chalcedony, 14 x 10.1 mm From Brazil

1.12 ct Octagon Cut Peridot, 7 x 5.1 mm From China

29.81 ct Oval Tiger's Eye Matrix, 33.9 x 19.6 mm From Mexico

1.27 ct Oval Cut Kornerupine, 7.7 x 6.1 mm From Sri Lanka

18.83 ct Oval Checkerboard Color-Change Fluorite, 19.8 x 15 mm From Brazil

0.4 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 6 x 3.8 mm

14.3 ct Octagon Cut Smoky Quartz, 14.8 x 14.7 mm From Brazil

1.03 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from the United States, Natural Untreated Gems, 5.1 x 5.1 mm

14.55 ct Round Cut Color-Change Fluorite, 15 mm From Brazil

2.13 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.1 mm

3.17 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.9 x 4.8 mm

11.27 carat Pear Pietersite, loose Certified Pietersite from Namibia, Natural Untreated Gem, 25.3 x 14.3 mm

1.78 ct Yellow Sphene, 7.5 x 6.2 mm Oval Cut From Sri Lanka

18.44 ct Cushion Jasper, 24.9 x 17.1 mm From Indonesia

1.6 carat Pink Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 8.4 x 5.2 mm

34.74 ct Cushion Jasper, 31.1 x 20.1 mm From Indonesia

1.35 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 16.1 x 3.4 mm

19.65 ct Multicolor Fossil Coral, 19 x 11.7 mm Oval Cut From Indonesia

7.22 ct Blue Green Grandidierite, 13.9 x 10.7 mm Oval Cut From Madagascar

0.34 ct Loose Yellow Sapphire, 5.6 x 4.1 mm Oval Cut From Tanzania

18.89 ct Blue Green Grandidierite, 18 x 14 mm Oval Cut From Madagascar

2.62 carat Blue Sapphire, Oval Cabochon loose Sapphire from Madagascar, Natural Gems, 4.1 x 3.1 mm

8.36 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 20.2 x 12.7 mm

0.94 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 7 x 6.9 mm

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