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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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1.50ct Pink Morganite, Pear Shape, VS

1.50ct Pink Morganite, Pear Shape, VS

12 x 5.7 mm

$ 115.04

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0.62ct Yellow Beryl, Pear Shape, VS

0.62ct Yellow Beryl, Pear Shape, VS

7 x 5 mm (calibrated)

$ 13.59

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0.61ct Red Spinel, Cushion, VS

0.61ct Red Spinel, Cushion, VS

5.7 x 4.5 mm

$ 50.63

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1.12ct Purple Spinel, Cushion, VVS-VS

1.12ct Purple Spinel, Cushion, VVS-VS

5.6 x 5.5 mm

$ 74.53

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 16.28

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6.61ct Pink Morganite, Oval, Translucent

6.61ct Pink Morganite, Oval, Translucent

12.9 x 10.1 mm

$ 72.42

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0.70ct Pink Morganite, Oval, VS-SI

0.70ct Pink Morganite, Oval, VS-SI

7.3 x 5.5 mm

$ 29.05

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8.24ctw White Topaz, Square, VS
Topaz Product Video (341423)

8.24ctw White Topaz, Square, VS

5 x 5 mm (calibrated)

$ 68.77

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0.57ct Pink Morganite, Oval, VS-SI

0.57ct Pink Morganite, Oval, VS-SI

6.9 x 4.8 mm

$ 24.98

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1.90ctw Yellow Golden Beryl, Oval, VS

1.90ctw Yellow Golden Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 52.04

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0.55ct Purple Spinel, Cushion, VVS

0.55ct Purple Spinel, Cushion, VVS

4.7 x 4.5 mm

$ 27.39

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3.24ctw White Topaz, Cushion, VVS-VS

3.24ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 17.75

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1.39ct Pink Morganite, Pear Shape, VVS-VS

1.39ct Pink Morganite, Pear Shape, VVS-VS

10.8 x 6.4 mm

$ 106.61

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0.06ct White Diamond, Marquise, VVS

0.06ct White Diamond, Marquise, VVS

4 x 1.9 mm

$ 208.54

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19.65ctw Black Spinel, Oval, Opaque

19.65ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 64.59

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3.13ctw Yellow Golden Beryl, Oval, VVS-VS

3.13ctw Yellow Golden Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 68.58

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1.96ct Yellow Rutile Topaz, Pear Shape, Transparent
Rutile Topaz Product Video (753626)

1.96ct Yellow Rutile Topaz, Pear Shape, Transparent

10.5 x 6.9 mm

$ 40.67

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2.29ctw Yellow Beryl, Oval, VVS-VS

2.29ctw Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 57.02

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1.53ct Yellow Beryl, Round, VVS

1.53ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 30.48

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0.34ct Black Diamond, Square, Opaque

0.34ct Black Diamond, Square, Opaque

3.3 x 3.2 mm

$ 141.10

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0.88ct Yellow Beryl, Trillion, VVS

0.88ct Yellow Beryl, Trillion, VVS

7.3 x 3.9 mm

$ 17.53

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1.68ct Pink Morganite, Pear Shape, VVS-VS

1.68ct Pink Morganite, Pear Shape, VVS-VS

10.8 x 6.6 mm

$ 128.84

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0.84ct Yellow Morganite, Pear Shape, VVS

0.84ct Yellow Morganite, Pear Shape, VVS

8 x 5.7 mm

$ 36.81

View Gem
0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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 -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

It was fine

Posted By Na in April, 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 -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

This is the first time I have used this site. I was dissatisfied with the quality of gems and supplies elsewhere and decided to try GemSelect. They are awesome! I was thrilled to see the variety and the great web performance. There was the ability to search for information as well as gems. Things like the clarity rating system and caret weight of the gems. I have always loved making things and I have just started to make jewelry as a business. However I have never made a ring before and have always wanted to. On GemSelect I was able to find good quality gems to use in my creations. I am so glad the website is so easy to use. Thank you GemSelect.

Posted By PickyShopper in April, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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