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 |
1.18Ct Light Purple Spinel, Cushion, Vvs-Vs
5.7 x 5.7 mm
$ 127.75
1.73Ct Warm White Topaz, Marquise, Vs
12 x 5.1 mm
$ 11.42
5.23Ct Light Pink Morganite, Pear Shape, Transparent
15 x 10 mm (calibrated)
$ 69.04
0.85Ct Light Yellow Beryl, Pear Shape, Vs
8 x 5.2 mm
$ 22.44
12.47Ctw Black Spinel, Oval, Opaque
14 x 10 mm (calibrated)
$ 57.60
4.31Ct Very Light Brown Rutile Topaz, Emerald Cut, Transparent
11.6 x 7.8 mm
$ 107.75
13.16Ct Deep Navy Blue Aquamarine, Oval, Vs-Si
19.3 x 13.1 mm
$ 1,263.36
1.02Ct Very Light Pink Morganite, Round, Vs
6.5 mm (calibrated)
$ 47.74
13.97Ctw Black Spinel, Round, Opaque
12 mm (calibrated)
$ 55.32
5.31Ct Rose Pink Morganite, Trillion, Translucent
11 x 11 mm (calibrated)
$ 70.09
4.17Ctw Warm White Topaz, Square, Vvs-Vs
4 x 4 mm (calibrated)
$ 40.46
4.12Ctw Clear White Topaz, Square, Vvs-Vs
4 x 4 mm (calibrated)
$ 39.97
1.02Ct Light Yellow Chrysoberyl, Pear Shape, Vvs
7.6 x 5.4 mm
$ 143.22
2.84Ctw Multicolor Andalusite, Round, Vs-Si
4 mm (calibrated)
$ 153.36
5.79Ct White Topaz, Oval, Vvs-Vs
12 x 10 mm (calibrated)
$ 46.32
8.30Ct Light Pink Morganite, Oval, Translucent
14.7 x 11.2 mm
$ 99.60
0.65Ct Grayish Violet Spinel, Cushion, Vs
5.2 x 4.6 mm
$ 54.60
0.95Ct Medium Light-Pink Morganite, Oval, Vvs-Vs
8 x 6 mm (calibrated)
$ 47.50
0.22Ct Medium Light Brown Color-Change Sapphire, Fancy, Vvs
4.3 x 3.8 mm
$ 22.00
1.53Ct Light Gold Beryl, Oval, Vvs
9 x 7 mm (calibrated)
$ 36.72
1.14Ct Deep Purple Spinel, Cushion, Vvs
6.8 x 5.6 mm
$ 136.80
0.63Ct Boysenberry Spinel, Cushion, Vs
4.8 x 4.5 mm
$ 52.92
1.04Ct Light Pinkish Purple Spinel, Cushion, Vs
6 x 6 mm (calibrated)
$ 187.20
0.78Ct Light Golden Morganite, Pear Shape, Vs
8 x 6 mm (calibrated)
$ 41.18
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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 -> 9 
It was great!
Overall Rating -> 10 
Easy and functional
Overall Rating -> 10
Very good.
Overall Rating -> 10
I love the product and the details about each of them.
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
No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!
