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 |
0.15Ctw I Diamond, Round, Vvs-Vs
2.7 mm (calibrated)
$ 323.09
0.07Ct Black Diamond, Round, Opaque
2.6 mm (calibrated)
$ 28.87
4.79Ct Warm White Topaz, Oval, Vs
11 x 9 mm (calibrated)
$ 26.35
0.57Ct Light Purple-Pink Spinel, Cushion, Vvs-Vs
5.9 x 4.2 mm
$ 34.20
5.99Ct Medium Pink Morganite, Trillion, Transparent
12 x 12 mm (calibrated)
$ 79.07
1.37Ct Medium-Light Pink Morganite, Pear Shape, Vs
9.7 x 6.3 mm
$ 126.59
1.06Ct Tuscany Yellow Sapphire, Cushion, Vs
6.6 x 5.9 mm
$ 265.00
1.62Ct Light Earthy Yellow Beryl, Round, Vvs-Vs
8 mm (calibrated)
$ 38.88
0.81Ct Light Golden-Yellow Beryl, Trillion, Vvs
7 x 7 mm (calibrated)
$ 19.44
5.39Ct Flamingo Pink Morganite, Trillion, Transparent
13 x 13 mm (calibrated)
$ 64.68
2.86Ctw Clear White Topaz, Cushion, Vvs-Vs
4.6 x 4.6 mm
$ 18.88
0.53Ct Very Light Pink Morganite, Pear Shape, Si
7 x 5 mm (calibrated)
$ 28.62
0.24Ct Black Diamond, Square, Opaque
2.8 x 2.8 mm
$ 144.00
0.98Ct Very Light Pink Morganite, Oval, Vvs
7.7 x 5.8 mm
$ 47.04
1.74Ct Tuscany Yellow Beryl, Round, Vvs
8 mm (calibrated)
$ 41.76
1.10Ct Medium Violet Spinel, Oval, Vs-Si
6.4 x 5.8 mm
$ 152.46
0.50Ct Medium Pink Morganite, Pear Shape, Vvs-Vs
7.8 x 4.3 mm
$ 36.30
0.74Ct Light Golden Morganite, Pear Shape, Vs
8 x 6 mm (calibrated)
$ 39.07
2.02Ct Red Spinel, Pear Shape, Vs-Si
7.8 x 7.7 mm
$ 3,030.00
0.98Ct Dijon Yellow Beryl, Oval, Vvs-Vs
8 x 6 mm (calibrated)
$ 29.40
1.35Ct Light Yellow Beryl, Round, Vvs
7 mm (calibrated)
$ 32.40
1.74Ctw Medium Yellow Beryl, Oval, Vs
8 x 6 mm (calibrated)
$ 52.20
1.00Ct Dark Purple Spinel, Cushion, Vs
6.4 x 5.5 mm
$ 144.00
3.00Ctw Clear White Topaz, Cushion, Vvs-Vs
4.6 x 4.5 mm
$ 19.80
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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 
Love, and have always loved, your website.
Overall Rating -> 10
It was easy to navigate
Overall Rating -> 10
selection was broad and the check out was quick. Great site
Overall Rating -> 10
Very large selection from affordable to high end I will be coming back to shop again!
Overall Rating -> 8 
The website was easy to use and there were a lot of good options, I was satisfied.
Overall Rating -> 10
this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.
