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Natural Untreated Gemstones

Discover genuine untreated gemstones selected for natural beauty, rarity, and authenticity.

Natural Untreated Gemstones Weight
Natural Untreated Gemstones Size
Natural Untreated Gemstones Clarity
Natural Untreated Gemstones Price
Natural Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
Blue Natural Untreated Gemstones
Brown Natural Untreated Gemstones
Golden Natural Untreated Gemstones
Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
Purple Natural Untreated Gemstones
Red Natural Untreated Gemstones
Turquoise Natural Untreated Gemstones
Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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1.28Ct Light Pink Morganite, Round, Vvs-Vs

1.28Ct Light Pink Morganite, Round, Vvs-Vs

7.5 mm (calibrated)

$ 84.48

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7.23Ct Light Pink Morganite, Pear Shape, Transparent

7.23Ct Light Pink Morganite, Pear Shape, Transparent

17 x 11.1 mm

$ 95.44

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0.21Ct Very Light Pink Morganite, Round, Vvs-Vs

0.21Ct Very Light Pink Morganite, Round, Vvs-Vs

4 mm (calibrated)

$ 10.50

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0.44Ct Medium Grey Chrysoberyl Cat's Eye, Round, Opaque

0.44Ct Medium Grey Chrysoberyl Cat's Eye, Round, Opaque

4 mm (calibrated)

$ 16.78

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3.51Ct White Topaz, Oval, Transparent

3.51Ct White Topaz, Oval, Transparent

10 x 8 mm (calibrated)

$ 23.17

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0.99Ct Very Light Pink Morganite, Round, Vs-Si

0.99Ct Very Light Pink Morganite, Round, Vs-Si

7 mm (calibrated)

$ 46.33

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1.26Ct Grayish Violet Spinel, Pear Shape, Vs-Si

1.26Ct Grayish Violet Spinel, Pear Shape, Vs-Si

9 x 5.4 mm

$ 170.59

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8.64Ctw Black Spinel, Round, Opaque

8.64Ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 39.91

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2.28Ct Light Pink Morganite, Oval, Transparent

2.28Ct Light Pink Morganite, Oval, Transparent

9.3 x 7.7 mm

$ 31.57

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1.10Ct Light Violet Spinel, Oval, Vvs-Vs

1.10Ct Light Violet Spinel, Oval, Vvs-Vs

6.4 x 5.6 mm

$ 160.98

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14.42Ct Coral Pink Morganite, Trillion, Translucent
Morganite Product Video (594891)

14.42Ct Coral Pink Morganite, Trillion, Translucent

16.7 x 16.2 mm

$ 190.34

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7.10Ctw White Topaz, Square, Vvs-Vs

7.10Ctw White Topaz, Square, Vvs-Vs

5 x 5 mm (calibrated)

$ 68.29

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0.20Ct Champagne Diamond, Round, Vs-Si
Diamond Product Video (564592)

0.20Ct Champagne Diamond, Round, Vs-Si

4 mm (calibrated)

$ 439.91

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0.15Ct L Diamond, Round, Vvs

0.15Ct L Diamond, Round, Vvs

3.4 mm

$ 303.42

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4.44Ct Light Pink Morganite, Marquise, Transparent

4.44Ct Light Pink Morganite, Marquise, Transparent

16 x 8 mm (calibrated)

$ 58.61

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 12.37

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0.03Ct E Diamond, Round, Vvs

0.03Ct E Diamond, Round, Vvs

2 mm (calibrated)

$ 82.50

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0.89Ct Honey Yellow Beryl, Oval, Vvs

0.89Ct Honey Yellow Beryl, Oval, Vvs

7 x 5 mm (calibrated)

$ 21.36

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5.07Ctw Warm White Topaz, Square, Vvs-Vs

5.07Ctw Warm White Topaz, Square, Vvs-Vs

4 x 4 mm (calibrated)

$ 49.19

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3.33Ctw Clear White Topaz, Cushion, Vvs-Vs

3.33Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 21.98

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0.32Ct Rose Pink Tone Morganite, Oval, Vvs

0.32Ct Rose Pink Tone Morganite, Oval, Vvs

5.5 x 3.8 mm

$ 16.00

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4.57Ctw Clear White Topaz, Cushion, Vvs-Vs

4.57Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 30.17

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0.04Ct I Diamond, Round, Vs-Si

0.04Ct I Diamond, Round, Vs-Si

2.3 mm (calibrated)

$ 87.56

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2.82Ctw Clear White Topaz, Cushion, Vvs-Vs

2.82Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 18.61

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Why Buy Natural Untreated Gemstones from GemSelect?

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.

Natural Untreated Gemstones for Jewelry and Collecting

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 star ratings

All good

Posted By DouscheGift in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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