Natural Untreated Gemstones
Discover genuine untreated gemstones selected for natural beauty, rarity, and authenticity.
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Bi-color Natural Untreated Gemstones
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Black Natural Untreated Gemstones
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Blue Natural Untreated Gemstones
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Brown Natural Untreated Gemstones
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Golden Natural Untreated Gemstones
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Gray Natural Untreated Gemstones
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Green Natural Untreated Gemstones
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Multicolor Natural Untreated Gemstones
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Orange Natural Untreated Gemstones
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Pink Natural Untreated Gemstones
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Purple Natural Untreated Gemstones
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Red Natural Untreated Gemstones
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Turquoise Natural Untreated Gemstones
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Violet Natural Untreated Gemstones
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White Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
4.11Ct Coral Pink Morganite, Trillion, Transparent
11 x 11 mm (calibrated)
$ 54.25
4.71Ct Medium Pink Morganite, Oval, Transparent
12 x 10 mm (calibrated)
$ 56.52
0.55Ct Rich Yellow Beryl, Oval, Vvs-Vs
6.7 x 4.8 mm
$ 16.50
0.57Ct Very Light Pinkish Purple Spinel, Round, Vvs-Vs
5 mm (calibrated)
$ 36.02
0.05Ct Black Diamond, Round, Opaque
2.1 mm (calibrated)
$ 20.62
4.81Ctw White Topaz, Square, Vs-Si
3.5 x 3.5 mm
$ 42.23
0.14Ct Champagne Diamond, Round, Vvs-Vs
3.2 mm
$ 279.94
1.10Ct Light Purple Spinel, Cushion, Vs
6 x 6 mm (calibrated)
$ 93.40
1.19Ct Light Gold Beryl, Pear Shape, Vvs-Vs
9.1 x 6.3 mm
$ 28.56
0.54Ct Hot Pink Spinel, Cushion, Vvs
5.2 x 4.3 mm
$ 45.36
5.05Ctw Clear White Topaz, Square, Vvs-Vs
4 x 4 mm (calibrated)
$ 49.00
1.45Ct Medium Light-Yellow Beryl, Round, Vvs
8 mm (calibrated)
$ 34.80
1.39Ct Grey-Purple Spinel, Cushion, Vvs-Vs
7 x 5.6 mm
$ 110.09
0.56Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque
5 x 4.2 mm
$ 140.00
0.26Ct Champagne Diamond, Round, Vs
4 mm (calibrated)
$ 519.89
2.28Ct Light Yellow Beryl, Oval, Vs
10 x 8 mm (calibrated)
$ 54.72
13.84Ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 54.80
1.63Ct Light Pink Morganite, Oval, Vs
9 x 7 mm (calibrated)
$ 136.92
0.14Ct Cognac Diamond, Round, Vvs-Vs
3.5 mm (calibrated)
$ 307.93
1.16Ct Pinkish Grape Spinel, Oval, Vs
6.5 x 5.3 mm
$ 160.78
1.09Ct Pinkish Purple Spinel, Oval, Vvs-Vs
6.9 x 5.8 mm
$ 107.92
6.77Ctw Black Spinel, Round, Opaque
9.5 mm (calibrated)
$ 26.81
1.58Ct Deep Purple Red Spinel, Cushion, Vvs
7.2 x 6.3 mm
$ 316.00
0.57Ct Lavender Pink Spinel, Cushion, Vvs-Vs
4.8 x 4.3 mm
$ 47.88
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Why Buy Natural Untreated Gemstones from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
Why Choose Untreated Gemstones?
Untreated gemstones are valued for their natural color and clarity without artificial enhancement. Many buyers prefer these gems for authenticity, rarity, and long-term value.
Natural Loose Untreated Gems Online
Shop loose untreated gemstones online at GemSelect with confidence. Browse sapphires, rubies, spinels, aquamarine, garnet, tourmaline, and more with full disclosure.
Untreated Gemstones for Jewelry
Natural untreated gems are excellent for rings, earrings, pendants, and custom jewelry. Their original beauty makes every piece unique and meaningful.
Popular Untreated Gemstone Types
Popular choices include untreated sapphire, ruby, spinel, garnet, tourmaline, zircon, aquamarine, and many collector stones in a wide range of colors.
Certified Natural Gemstones
Many buyers choose untreated gemstones with gemological reports for added confidence. Certification can confirm identity and indicate whether treatments are present.
Collector Quality Untreated Gems
Collectors appreciate untreated gemstones because naturally fine examples are rarer than treated material. These stones can be especially desirable when color and clarity are strong.
Calibrated Untreated Gemstones
We also offer calibrated untreated gemstones in popular sizes suitable for standard jewelry settings, making custom designs easier and faster.
Worldwide Shipping from GemSelect
GemSelect offers secure online ordering, detailed product images, and worldwide delivery so you can shop untreated gemstones from anywhere.
Learn more about gemstone treatments, identification, and care on our Gemstone Information Pages.
FAQs
What does untreated gemstone mean?
An untreated gemstone has not undergone enhancement processes such as heating, dyeing, filling, coating, or diffusion to improve appearance.
Are untreated gemstones more valuable?
Often yes, especially in sapphire, ruby, and other premium gems where fine untreated stones are rarer than treated examples.
How can I verify a gemstone is untreated?
Independent laboratory certification is the best way to verify whether a gemstone is natural and untreated.
Which gemstones are commonly sold untreated?
Spinel, garnet, zircon, tourmaline, aquamarine, and some sapphires or rubies are often available untreated depending on source and quality.
Are all untreated gemstones natural?
Natural untreated gemstones are mined stones that have not been enhanced after cutting. Always buy from trusted sellers with clear disclosure.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
went well
Overall Rating -> 8 
First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.
Overall Rating -> 8
Good prices
Overall Rating -> 10
IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.
Overall Rating -> 10
Great for buying gemstones, came with authenticity certs. Will buy again someday!
Overall Rating -> 10
I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.
