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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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1.64Ctw Multicolor Andalusite, Oval, Vs

1.64Ctw Multicolor Andalusite, Oval, Vs

5 x 3.1 mm

$ 105.56

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1.00Ct Light Yellow Chrysoberyl, Oval, Vvs

1.00Ct Light Yellow Chrysoberyl, Oval, Vvs

7 x 5 mm (calibrated)

$ 139.55

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0.02Ct Black Diamond, Round, Opaque

0.02Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 19.20

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3.84Ctw Warm White Topaz, Square, Vvs-Vs

3.84Ctw Warm White Topaz, Square, Vvs-Vs

4 x 4 mm (calibrated)

$ 37.25

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1.04Ct Medium Pink Morganite, Pear Shape, Vvs
Morganite Product Video (478215)

1.04Ct Medium Pink Morganite, Pear Shape, Vvs

11 x 5.2 mm

$ 124.80

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2.94Ctw Clear White Topaz, Cushion, Vvs-Vs

2.94Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.40

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0.17Ct Maya Blue Aquamarine, Square, Vs

0.17Ct Maya Blue Aquamarine, Square, Vs

3.2 x 3.2 mm

$ 23.80

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0.23Ct Flamingo Pink Morganite, Oval, Vs-Si

0.23Ct Flamingo Pink Morganite, Oval, Vs-Si

4.7 x 3.4 mm

$ 11.50

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1.99Ctw Light Golden Morganite, Oval, Vs

1.99Ctw Light Golden Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 94.36

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5.73Ct Very Light Golden-Brown Rutile Topaz, Heart, Transparent

5.73Ct Very Light Golden-Brown Rutile Topaz, Heart, Transparent

11 x 11 mm (calibrated)

$ 143.25

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0.08Ctw Black Diamond, Round, Opaque

0.08Ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 76.80

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0.73Ct Light Yellow Beryl, Pear Shape, Vvs-Vs

0.73Ct Light Yellow Beryl, Pear Shape, Vvs-Vs

7 x 5 mm (calibrated)

$ 17.52

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0.05Ct Black Diamond, Round, Opaque
Diamond Product Video (699334)

0.05Ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 12.95

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3.11Ctw Clear White Topaz, Cushion, Vvs-Vs

3.11Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 20.53

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2.70Ct Light Gold Golden Beryl, Round, Vvs
Golden Beryl Product Video (595026)

2.70Ct Light Gold Golden Beryl, Round, Vvs

9 mm (calibrated)

$ 71.28

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1.21Ct Grape Purple Spinel, Cushion, Vvs-Vs

1.21Ct Grape Purple Spinel, Cushion, Vvs-Vs

6.5 x 6.1 mm

$ 145.20

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7.84Ctw Black Spinel, Round, Opaque

7.84Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 31.04

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1.95Ct Light Pink Morganite, Round, Vs

1.95Ct Light Pink Morganite, Round, Vs

8 mm (calibrated)

$ 128.70

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0.13Ctw Black Diamond, Square, Opaque

0.13Ctw Black Diamond, Square, Opaque

2 x 1.9 mm

$ 78.00

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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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1.35Ct Medium Purple Spinel, Cushion, Vvs

1.35Ct Medium Purple Spinel, Cushion, Vvs

6.9 x 5.7 mm

$ 90.98

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1.36Ct Light Yellow Beryl, Trillion, Vvs

1.36Ct Light Yellow Beryl, Trillion, Vvs

8 x 8 mm (calibrated)

$ 32.64

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0.61Ct Light Yellow Beryl, Oval, Vs

0.61Ct Light Yellow Beryl, Oval, Vs

7 x 5 mm (calibrated)

$ 14.03

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1.32Ct Orange-Gold Beryl, Oval, Vs

1.32Ct Orange-Gold Beryl, Oval, Vs

8.9 x 6.7 mm

$ 31.68

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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

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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