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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
Single
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0.96ct Yellow Beryl, Oval, VS

0.96ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 23.90

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1.59ct Yellow Beryl, Trillion, VVS

1.59ct Yellow Beryl, Trillion, VVS

9.1 x 8.6 mm

$ 38.01

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1.93ct Yellow Beryl, Round, VVS

1.93ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 42.29

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5.03ct Yellow Rutile Topaz, Pear Shape, Transparent

5.03ct Yellow Rutile Topaz, Pear Shape, Transparent

15.3 x 8.7 mm

$ 104.37

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3.40ct White Topaz, Round, VVS-VS

3.40ct White Topaz, Round, VVS-VS

9 mm (calibrated)

$ 18.63

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0.52ct Purple Spinel, Round, VS

0.52ct Purple Spinel, Round, VS

5 mm (calibrated)

$ 27.27

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1.67ct White Topaz, Marquise, VS

1.67ct White Topaz, Marquise, VS

12.1 x 5 mm

$ 9.15

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 17.11

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3.01ct White Topaz, Oval, VVS-VS

3.01ct White Topaz, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 16.49

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5.93ct Pink Morganite, Oval, Opaque

5.93ct Pink Morganite, Oval, Opaque

13 x 11 mm (calibrated)

$ 24.61

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1.29ct Purple Spinel, Cushion, VS

1.29ct Purple Spinel, Cushion, VS

6.7 x 5.7 mm

$ 90.90

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1.80ct Yellow Beryl, Trillion, VVS

1.80ct Yellow Beryl, Trillion, VVS

9 x 9 mm (calibrated)

$ 39.44

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0.63ct Pink Spinel, Cushion, VS

0.63ct Pink Spinel, Cushion, VS

5.1 x 4.5 mm

$ 31.37

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0.69ct Green Cat'S Eye Alexandrite, Oval, Opaque

0.69ct Green Cat'S Eye Alexandrite, Oval, Opaque

6 x 4 mm (calibrated)

$ 143.18

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0.45ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

0.45ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

5 x 4 mm (calibrated)

$ 13.45

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0.31ct Red Spinel, Baguette, VVS-VS

0.31ct Red Spinel, Baguette, VVS-VS

3.6 x 3.3 mm

$ 25.73

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1.51ct Pink Morganite, Oval, VS

1.51ct Pink Morganite, Oval, VS

9 x 7 mm (calibrated)

$ 115.80

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1.98ctw Orange Morganite, Oval, VS

1.98ctw Orange Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 119.31

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0.92ct Purple Spinel, Cushion, VS

0.92ct Purple Spinel, Cushion, VS

6 x 5.3 mm

$ 109.96

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0.76ct Yellow Morganite, Pear Shape, VS

0.76ct Yellow Morganite, Pear Shape, VS

8 x 5.7 mm

$ 33.31

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4.34ct White Topaz, Heart, VVS-VS

4.34ct White Topaz, Heart, VVS-VS

10 x 10 mm (calibrated)

$ 36.02

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0.54ct Pink Morganite, Oval, VVS-VS

0.54ct Pink Morganite, Oval, VVS-VS

6.4 x 4.6 mm

$ 47.33

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0.65ct Violet Spinel, Cushion, VS

0.65ct Violet Spinel, Cushion, VS

5.2 x 4.6 mm

$ 45.32

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2.00ct Yellow Golden Beryl, Oval, VVS-VS

2.00ct Yellow Golden Beryl, Oval, VVS-VS

10.2 x 7.7 mm

$ 54.78

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 been very happy with my prior purchases and enjoy the website experience.

Posted By Trouble in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
Source: Bizrate

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

Very food

Posted By Keeto in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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