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Home › Gemstones › Natural Untreated Gemstones

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
Single
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2.94ctw White Topaz, Cushion, VVS-VS

2.94ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 16.10

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4.27ctw White Topaz, Cushion, VS

4.27ctw White Topaz, Cushion, VS

4.5 x 4.5 mm

$ 23.40

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0.55ct Pink Morganite, Pear Shape, VVS-VS

0.55ct Pink Morganite, Pear Shape, VVS-VS

7.3 x 4.5 mm

$ 48.21

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0.71ct Yellow Beryl, Trillion, VVS

0.71ct Yellow Beryl, Trillion, VVS

7 x 7 mm (calibrated)

$ 14.14

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0.46ct Pink Morganite, Oval, VVS-VS

0.46ct Pink Morganite, Oval, VVS-VS

6.9 x 4.1 mm

$ 27.72

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0.03ct White Diamond, Round, VVS

0.03ct White Diamond, Round, VVS

2 mm (calibrated)

$ 68.48

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0.57ct Pink Morganite, Pear Shape, VS

0.57ct Pink Morganite, Pear Shape, VS

7.8 x 4.3 mm

$ 34.35

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19.41ctw Black Spinel, Oval, Opaque

19.41ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 74.43

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0.89ct Yellow Chrysoberyl, Pear Shape, VVS

0.89ct Yellow Chrysoberyl, Pear Shape, VVS

8 x 5.3 mm

$ 102.99

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0.67ct Purple Spinel, Cushion, VVS-VS

0.67ct Purple Spinel, Cushion, VVS-VS

5 x 5 mm (calibrated)

$ 46.71

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0.17ct White Diamond, Round, VVS

0.17ct White Diamond, Round, VVS

3.5 mm (calibrated)

$ 285.42

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2.88ctw White Topaz, Cushion, VVS-VS

2.88ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 15.78

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2.23ctw Yellow Beryl, Oval, VS

2.23ctw Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 44.42

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4.11ct Pink Morganite, Trillion, Transparent

4.11ct Pink Morganite, Trillion, Transparent

11 x 11 mm (calibrated)

$ 45.03

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1.23ct Yellow Morganite, Oval, VVS-VS

1.23ct Yellow Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 53.90

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14.65ctw Black Spinel, Round, Opaque

14.65ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.71

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1.13ct Purple Spinel, Cushion, VVS-VS

1.13ct Purple Spinel, Cushion, VVS-VS

6.4 x 5.6 mm

$ 112.55

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0.72ct Pink Morganite, Pear Shape, VVS

0.72ct Pink Morganite, Pear Shape, VVS

9 x 4.3 mm

$ 43.38

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0.53ct Pink Morganite, Round, VVS-VS

0.53ct Pink Morganite, Round, VVS-VS

5.5 mm (calibrated)

$ 23.75

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0.78ct Yellow Morganite, Cushion, VS

0.78ct Yellow Morganite, Cushion, VS

6 x 6 mm (calibrated)

$ 47.00

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6.01ct Orange Imperial Topaz, Pear Shape, VVS
Imperial Topaz Product Video (346642)

6.01ct Orange Imperial Topaz, Pear Shape, VVS

19.9 x 7.8 mm

$ 3,352.14

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0.77ct Yellow Beryl, Trillion, VS

0.77ct Yellow Beryl, Trillion, VS

7 x 7 mm (calibrated)

$ 15.34

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5.22ct Pink Morganite, Oval, Transparent

5.22ct Pink Morganite, Oval, Transparent

11.9 x 9.2 mm

$ 57.19

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0.09ctw Black Diamond, Round, Opaque

0.09ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 71.71

View Gem
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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 have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was fine . Wish there had been more round stones to select from

Posted By Emm in January, 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

Great! Affordable

Posted By Spinellope in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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