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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

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For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
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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
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Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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0.16Ct Black Diamond, Square, Opaque

0.16Ct Black Diamond, Square, Opaque

2.7 x 2.5 mm

$ 96.00

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0.90Ct Light Golden Morganite, Pear Shape, Vs

0.90Ct Light Golden Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 47.52

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0.55Ct Dijon Yellow Beryl, Oval, Vvs-Vs

0.55Ct Dijon Yellow Beryl, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 16.50

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0.74Ct Golden Beryl, Oval, Vs

0.74Ct Golden Beryl, Oval, Vs

7 x 5 mm (calibrated)

$ 22.20

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4.77Ctw Clear White Topaz, Cushion, Vvs-Vs

4.77Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 31.49

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0.22Ctw K Diamond, Round, Vvs-Vs
Diamond Product Video (567431)

0.22Ctw K Diamond, Round, Vvs-Vs

3 mm (calibrated)

$ 473.86

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0.36Ct Champagne Diamond, Round, Vs-Si
Diamond Product Video (564595)

0.36Ct Champagne Diamond, Round, Vs-Si

4.3 mm

$ 659.86

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6.42Ct Light Coral Pink Morganite, Round, Transparent

6.42Ct Light Coral Pink Morganite, Round, Transparent

11 mm (calibrated)

$ 77.88

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2.47Ctw Multicolor Andalusite, Round, Vs-Si

2.47Ctw Multicolor Andalusite, Round, Vs-Si

3.8 mm

$ 133.38

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24.87Ctw Black Spinel, Baguette, Opaque

24.87Ctw Black Spinel, Baguette, Opaque

17.6 x 8.2 mm

$ 98.48

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1.27Ct Lemon Yellow Chrysoberyl, Pear Shape, Vvs

1.27Ct Lemon Yellow Chrysoberyl, Pear Shape, Vvs

8 x 6 mm (calibrated)

$ 178.32

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0.65Ct Hot Pink Spinel, Cushion, Vvs-Vs

0.65Ct Hot Pink Spinel, Cushion, Vvs-Vs

5.3 x 4.6 mm

$ 54.60

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3.04Ctw Honey Yellow Golden Beryl, Oval, Vs

3.04Ctw Honey Yellow Golden Beryl, Oval, Vs

9 x 7 mm (calibrated)

$ 80.26

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7.45Ctw Black Spinel, Round, Opaque

7.45Ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 34.43

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0.79Ct Tuscany Yellow Beryl, Trillion, Vvs

0.79Ct Tuscany Yellow Beryl, Trillion, Vvs

7 x 7 mm (calibrated)

$ 18.96

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1.07Ct Medium Dark-Pink Spinel, Cushion, Vvs-Vs
Spinel Product Video (720483)

1.07Ct Medium Dark-Pink Spinel, Cushion, Vvs-Vs

8 x 5 mm (calibrated)

$ 192.60

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1.06Ct Light Yellow Beryl, Cushion, Vvs-Vs

1.06Ct Light Yellow Beryl, Cushion, Vvs-Vs

8 x 6 mm (calibrated)

$ 30.53

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2.74Ct Light Rose Pink Morganite, Pear Shape, Transparent

2.74Ct Light Rose Pink Morganite, Pear Shape, Transparent

14 x 9 mm (calibrated)

$ 34.49

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1.02Ct Raspberry Red Purple Spinel, Pear Shape, Vvs
Spinel Product Video (400519)

1.02Ct Raspberry Red Purple Spinel, Pear Shape, Vvs

7.6 x 6.1 mm

$ 214.00

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0.77Ct Salmon Pink Morganite, Oval, Vs

0.77Ct Salmon Pink Morganite, Oval, Vs

7.6 x 5.8 mm

$ 41.58

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0.71Ct Light Honey Yellow Beryl, Trillion, Vvs

0.71Ct Light Honey Yellow Beryl, Trillion, Vvs

7 x 7 mm (calibrated)

$ 17.04

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0.53Ct Very Light Pink Morganite, Oval, Vs

0.53Ct Very Light Pink Morganite, Oval, Vs

6.4 x 4.5 mm

$ 28.62

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1.65Ct Deep Lavender Spinel, Cushion, Vvs-Vs

1.65Ct Deep Lavender Spinel, Cushion, Vvs-Vs

7.6 x 6.9 mm

$ 141.58

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7.16Ct Warm Green Chrysoberyl Cat's Eye, Oval, Opaque

7.16Ct Warm Green Chrysoberyl Cat's Eye, Oval, Opaque

11 x 9 mm (calibrated)

$ 7,876.00

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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

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 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

Web site is very simple to navigate Selection is terrific

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
Source: Bizrate
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