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 |
11.21Ct Medium Pink Morganite, Oval, Translucent
17.5 x 12.1 mm
$ 147.97
2.53Ct Light Yellow Golden Beryl, Oval, Vvs
10 x 8 mm (calibrated)
$ 83.50
0.36Ct Champagne Diamond, Round, Vs
4.5 mm (calibrated)
$ 659.86
1.46Ct Very Light Pinkish Purple Spinel, Cushion, Vs
6.8 x 6.4 mm
$ 129.52
1.61Ct Deep Purple Spinel, Pear Shape, Vs
9.3 x 6.3 mm
$ 159.08
43.72Ct Greyish Blue Green Cat's Eye Aquamarine, Oval, Translucent
22 x 19 mm
$ 807.95
1.93Ctw Multicolor Andalusite, Oval, Vs
5 x 3 mm (calibrated)
$ 124.22
0.21Ctw I Diamond, Round, Vvs-Vs
3 mm (calibrated)
$ 459.70
1.53Ct Light Purple Spinel, Cushion, Vs
6.7 x 5.3 mm
$ 141.37
1.85Ct Champagne Diamond, Round, Si
7.5 mm (calibrated)
$ 5,772.00
1.15Ct Lemon Yellow Chrysoberyl, Pear Shape, Vvs
8.6 x 5.7 mm
$ 161.47
0.31Ct Cognac Diamond, Round, Vs
4.5 mm (calibrated)
$ 619.86
13.54Ct Light Aqua Blue Aquamarine, Emerald Cut, Vvs
19.3 x 9.7 mm
$ 4,468.20
10.69Ct Light Grey Star Sapphire, Oval, Opaque
11.7 x 11.1 mm
$ 448.98
1.58Ct Dark Purple Mauve Spinel, Marquise, Vs
10.6 x 5.8 mm
$ 112.74
1.34Ct Electric Purple Sapphire, Cushion, Vs
7.1 x 5.3 mm
$ 709.50
1.54Ct Cognac Diamond, Round, Si
7.5 mm (calibrated)
$ 4,404.40
19.30Ct Light Pink Morganite, Round, Vvs-Vs
17 mm (calibrated)
$ 3,821.40
6.29Ct Intense Orange Imperial Topaz, Cushion, Vvs
13.7 x 8.3 mm
$ 3,522.40
2.19Ctw Multicolor Andalusite, Round, Vs
4 mm (calibrated)
$ 144.54
2.76Ct Medium Yellow Golden Beryl, Oval, Vvs-Vs
10 x 8 mm (calibrated)
$ 91.08
1.50Ct Medium Purple Spinel, Cushion, Vs
7.1 x 6 mm
$ 167.32
0.25Ctw I Diamond, Round, Vvs-Vs
3 mm (calibrated)
$ 456.04
1.27Ct Light Lemon Yellow Chrysoberyl, Pear Shape, Vvs
8.5 x 6 mm
$ 178.32
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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 
Web site is very simple to navigate Selection is terrific
Overall Rating -> 10
Enjoy viewing the selections. Excellent product
Overall Rating -> 10
Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!
Overall Rating -> 10
love the site, the experience and the products.
Overall Rating -> 10
I was able to find what I wanted very easily!
Overall Rating -> 10
Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.
