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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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0.56Ct Light Yellow Beryl, Oval, Vvs

0.56Ct Light Yellow Beryl, Oval, Vvs

6.3 x 5.1 mm

$ 12.88

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0.93Ct Tuscany Yellow Beryl, Trillion, Vvs

0.93Ct Tuscany Yellow Beryl, Trillion, Vvs

7 x 7 mm (calibrated)

$ 22.32

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2.19Ctw Light Golden-Yellow Beryl, Oval, Vs

2.19Ctw Light Golden-Yellow Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 52.56

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0.51Ct Pale-Greenish Grey Cat's Eye Alexandrite, Oval, Opaque

0.51Ct Pale-Greenish Grey Cat's Eye Alexandrite, Oval, Opaque

5.8 x 3.6 mm

$ 178.50

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0.48Ct Pale Cream Yellow Chrysoberyl Cat's Eye, Oval, Translucent

0.48Ct Pale Cream Yellow Chrysoberyl Cat's Eye, Oval, Translucent

5.5 x 3.5 mm

$ 17.28

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0.85Ct Very Light Pink Morganite, Pear Shape, Vvs-Vs

0.85Ct Very Light Pink Morganite, Pear Shape, Vvs-Vs

11.6 x 4.4 mm

$ 61.72

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5.15Ct Light Blue Green Aquamarine, Oval, Vs-Si

5.15Ct Light Blue Green Aquamarine, Oval, Vs-Si

14 x 10 mm (calibrated)

$ 494.40

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0.91Ct Earthy Yellow Beryl, Cushion, Vs

0.91Ct Earthy Yellow Beryl, Cushion, Vs

6 x 6 mm (calibrated)

$ 24.02

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2.38Ctw Multicolor Andalusite, Round, Vs-Si

2.38Ctw Multicolor Andalusite, Round, Vs-Si

4 mm (calibrated)

$ 141.37

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0.14Ctw J Diamond, Round, Vvs-Vs

0.14Ctw J Diamond, Round, Vvs-Vs

2.7 mm (calibrated)

$ 306.46

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0.69Ct Light Golden-Yellow Beryl, Oval, Vs

0.69Ct Light Golden-Yellow Beryl, Oval, Vs

7 x 5 mm (calibrated)

$ 16.56

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1.32Ct Medium Purple Sapphire, Pear Shape, Vs-Si
Sapphire Product Video (447816)

1.32Ct Medium Purple Sapphire, Pear Shape, Vs-Si

8 x 6.3 mm

$ 838.69

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1.02Ct Warm Earthy Green Chrysoberyl, Pear Shape, Vvs
Chrysoberyl Product Video (366562)

1.02Ct Warm Earthy Green Chrysoberyl, Pear Shape, Vvs

7.6 x 5.6 mm

$ 143.22

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1.31Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

1.31Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 30.13

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3.20Ct Light Pink Morganite, Oval, Transparent

3.20Ct Light Pink Morganite, Oval, Transparent

10.9 x 8.1 mm

$ 42.24

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0.15Ctw I Diamond, Round, Vvs-Vs
Diamond Product Video (567399)

0.15Ctw I Diamond, Round, Vvs-Vs

2.7 mm (calibrated)

$ 323.09

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1.07Ct Light Yellow Beryl, Oval, Vs

1.07Ct Light Yellow Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 25.68

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3.49Ct Warm White Topaz, Round, Vs-Si

3.49Ct Warm White Topaz, Round, Vs-Si

8.5 mm (calibrated)

$ 27.64

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2.11Ctw Multicolor Andalusite, Oval, Vs

2.11Ctw Multicolor Andalusite, Oval, Vs

6 x 4 mm (calibrated)

$ 136.31

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1.01Ct Light Yellow Morganite, Cushion, Vs

1.01Ct Light Yellow Morganite, Cushion, Vs

6 x 6 mm (calibrated)

$ 73.33

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1.06Ct Eggplant Purple Spinel, Cushion, Vs

1.06Ct Eggplant Purple Spinel, Cushion, Vs

6.6 x 4.9 mm

$ 127.20

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0.46Ct Deep Rose Red Spinel, Oval, Vvs

0.46Ct Deep Rose Red Spinel, Oval, Vvs

5.2 x 4.7 mm

$ 46.00

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 28.80

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22.11Ctw Black Spinel, Oval, Opaque

22.11Ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 87.55

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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

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
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

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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