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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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0.16ctw White Diamond, Round, VVS-VS

0.16ctw White Diamond, Round, VVS-VS

2.8 mm (calibrated)

$ 286.04

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3.70ctw Multicolor Andalusite, Round, VS

3.70ctw Multicolor Andalusite, Round, VS

3.5 mm (calibrated)

$ 135.42

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0.65ct Pink Morganite, Pear Shape, VS

0.65ct Pink Morganite, Pear Shape, VS

7.8 x 5.3 mm

$ 56.97

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0.39ct Green Chrysoberyl Cat'S Eye, Round, Translucent

0.39ct Green Chrysoberyl Cat'S Eye, Round, Translucent

5 mm (calibrated)

$ 11.65

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1.38ct Yellow Beryl, Trillion, VVS

1.38ct Yellow Beryl, Trillion, VVS

8 x 8 mm (calibrated)

$ 27.49

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1.72ctw Pink Morganite, Oval, VS

1.72ctw Pink Morganite, Oval, VS

7.8 x 5.6 mm

$ 94.22

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0.97ct Yellow Beryl, Oval, VVS

0.97ct Yellow Beryl, Oval, VVS

8 x 6 mm (calibrated)

$ 19.32

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0.26ct Yellow Diamond, Round, VS
Diamond Product Video (564597)

0.26ct Yellow Diamond, Round, VS

4 mm (calibrated)

$ 431.51

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1.05ct Yellow Beryl, Round, VVS

1.05ct Yellow Beryl, Round, VVS

7 mm (calibrated)

$ 20.92

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4.64ct Yellow Rutile Topaz, Pear Shape, Transparent

4.64ct Yellow Rutile Topaz, Pear Shape, Transparent

14 x 9 mm (calibrated)

$ 96.28

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1.41ct Yellow Beryl, Oval, VVS

1.41ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 28.09

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0.58ct Purple Spinel, Round, VS

0.58ct Purple Spinel, Round, VS

5 mm (calibrated)

$ 24.93

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4.44ct Pink Morganite, Marquise, Transparent

4.44ct Pink Morganite, Marquise, Transparent

16 x 8 mm (calibrated)

$ 48.65

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0.43ct Pink Morganite, Oval, VS

0.43ct Pink Morganite, Oval, VS

5.9 x 4.5 mm

$ 19.27

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2.10ctw Multicolor Andalusite, Round, VS

2.10ctw Multicolor Andalusite, Round, VS

4 mm (calibrated)

$ 115.04

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1.14ct Yellow Beryl, Oval, VVS-VS

1.14ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 22.71

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1.15ct Pink Morganite, Pear Shape, VVS-VS

1.15ct Pink Morganite, Pear Shape, VVS-VS

10.3 x 5.5 mm

$ 125.99

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0.52ct Pink Spinel, Cushion, VS

0.52ct Pink Spinel, Cushion, VS

4.8 x 4.8 mm

$ 21.58

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6.04ct White Topaz, Cushion, VVS-VS

6.04ct White Topaz, Cushion, VVS-VS

12 x 10 mm (calibrated)

$ 40.11

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1.40ct White Topaz, Oval, Transparent

1.40ct White Topaz, Oval, Transparent

10 x 10 mm (calibrated)

$ 7.67

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2.3 mm (calibrated)

$ 13.57

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10.42ct Pink Morganite, Pear Shape, Transparent

10.42ct Pink Morganite, Pear Shape, Transparent

20.3 x 12.6 mm

$ 114.16

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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0.09ctw Black Diamond, Round, Opaque

0.09ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 26.15

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

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
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Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
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Overall Rating -> 10 star ratings

It was easy to navigate

Posted By GemGod in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I loved the selection of gemstones you have a to z

Posted By James in May, 2026
Source: Bizrate
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