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 |
2.78Ctw White Topaz, Cushion, Vvs-Vs
4.6 x 4.6 mm
$ 18.35
1.18Ct Boysenberry Spinel, Cushion, Vs
6.5 x 5.7 mm
$ 94.60
0.53Ct Hot Pink Spinel, Cushion, Vs
5.3 x 4 mm
$ 44.52
6.04Ct Clear White Topaz, Cushion, Vvs-Vs
12 x 10 mm (calibrated)
$ 48.32
3.36Ctw Light Yellow Golden Beryl, Oval, Vs
9 x 7 mm (calibrated)
$ 97.57
2.16Ctw Tuscany Yellow Golden Beryl, Oval, Vs
8 x 6 mm (calibrated)
$ 71.28
1.54Ct Light Gold Beryl, Oval, Vvs-Vs
9 x 7 mm (calibrated)
$ 36.96
8.19Ctw Multicolor Andalusite, Oval, Vs-Si
6 x 4 mm (calibrated)
$ 540.54
1.51Ct Light Grayish Violet Spinel, Cushion, Vs
6.7 x 6.4 mm
$ 151.56
0.64Ct Very Light Pink Morganite, Round, Vvs
6 mm (calibrated)
$ 32.00
0.04Ct Black Diamond, Square, Opaque
2 x 1.7 mm
$ 24.00
0.58Ct Light Rose Pink Morganite, Pear Shape, Vvs-Vs
8.4 x 4.3 mm
$ 61.25
4.57Ct Medium-Light Pink Morganite, Round, Transparent
10 mm (calibrated)
$ 63.28
0.27Ct Medium Light-Yellow Diamond, Round, Vs
4 mm (calibrated)
$ 593.87
3.00Ctw Multicolor Andalusite, Oval, Vs-Si
5.5 x 3.7 mm
$ 162.00
0.76Ct Medium Purple Spinel, Round, Vs
5 mm (calibrated)
$ 50.16
0.08Ct Black Diamond, Round, Opaque
2.6 mm (calibrated)
$ 32.99
1.21Ct Dark Purple Spinel, Cushion, Vvs-Vs
6.6 x 6.1 mm
$ 242.00
4.62Ct Light Pink Morganite, Pear Shape, Transparent
11.8 x 9 mm
$ 23.10
0.85Ct Black Diamond, Round, Opaque
5.5 mm (calibrated)
$ 816.00
1.07Ct Medium Yellow Beryl, Oval, Vs
8 x 6 mm (calibrated)
$ 25.68
7.01Ctw Black Spinel, Round, Opaque
9 mm (calibrated)
$ 32.39
0.82Ct Medium Purple Spinel, Cushion, Vs
5.8 x 5.3 mm
$ 147.60
0.15Ctw J Diamond, Round, Vvs-Vs
2.7 mm (calibrated)
$ 323.09
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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 picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.
Overall Rating -> 10
Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.
Overall Rating -> 10
selection was broad and the check out was quick. Great site
Overall Rating -> 10
Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.
Overall Rating -> 10
Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!
