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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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0.02ct Black Diamond, Round, Opaque

0.02ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 15.94

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1.56ct Yellow Beryl, Cushion, VVS-VS

1.56ct Yellow Beryl, Cushion, VVS-VS

8.8 x 6.6 mm

$ 37.29

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1.10ct Yellow Beryl, Oval, VS

1.10ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 21.91

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0.55ct Yellow Beryl, Oval, VVS

0.55ct Yellow Beryl, Oval, VVS

7.3 x 5 mm

$ 10.50

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1.13ct Pink Morganite, Round, VS

1.13ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 86.66

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2.47ctw Multicolor Andalusite, Round, VS-SI

2.47ctw Multicolor Andalusite, Round, VS-SI

3.8 mm

$ 110.71

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1.25ct Gray Cat'S Eye Alexandrite, Oval, Opaque

1.25ct Gray Cat'S Eye Alexandrite, Oval, Opaque

6.7 x 4.2 mm

$ 259.38

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0.23ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

0.23ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

4.1 x 2.9 mm

$ 6.87

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1.83ct Yellow Beryl, Trillion, VVS

1.83ct Yellow Beryl, Trillion, VVS

8.9 x 8.6 mm

$ 43.74

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0.19ct White Diamond, Round, VVS

0.19ct White Diamond, Round, VVS

3.5 mm (calibrated)

$ 319.00

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1.79ct Green Cat'S Eye Alexandrite, Oval, Opaque

1.79ct Green Cat'S Eye Alexandrite, Oval, Opaque

6.3 x 6.1 mm

$ 371.43

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0.28ct Pink Morganite, Round, VVS-VS

0.28ct Pink Morganite, Round, VVS-VS

4.5 mm (calibrated)

$ 11.62

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0.17ctw White Diamond, Round, VVS-VS
Diamond Product Video (567443)

0.17ctw White Diamond, Round, VVS-VS

2.8 mm (calibrated)

$ 303.91

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4.22ct White Topaz, Heart, VS

4.22ct White Topaz, Heart, VS

10 x 10 mm (calibrated)

$ 35.03

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1.45ct Purple Spinel, Cushion, VS

1.45ct Purple Spinel, Cushion, VS

7 x 6 mm

$ 91.50

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0.20ctw White Diamond, Round, VVS-VS

0.20ctw White Diamond, Round, VVS-VS

2.9 mm (calibrated)

$ 363.37

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0.56ct Pink Morganite, Oval, SI

0.56ct Pink Morganite, Oval, SI

7 x 5 mm (calibrated)

$ 23.24

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4.19ct White Topaz, Heart, VVS-VS

4.19ct White Topaz, Heart, VVS-VS

10 x 10 mm (calibrated)

$ 34.78

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1.26ct Violet Spinel, Pear Shape, VS-SI

1.26ct Violet Spinel, Pear Shape, VS-SI

9 x 5.4 mm

$ 141.59

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1.37ct Yellow Golden Beryl, Oval, VVS-VS

1.37ct Yellow Golden Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 34.11

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1.65ct Yellow Beryl, Round, VVS

1.65ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 32.87

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17.60ctw Black Spinel, Heart, Opaque

17.60ctw Black Spinel, Heart, Opaque

13 x 13 mm (calibrated)

$ 57.85

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8.18ct Pink Morganite, Pear Shape, Translucent

8.18ct Pink Morganite, Pear Shape, Translucent

17.9 x 10.2 mm

$ 33.95

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3.55ct White Topaz, Heart, VVS-VS

3.55ct White Topaz, Heart, VVS-VS

9.8 x 9.6 mm

$ 29.47

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

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 -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

Posted By Amman in May, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

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