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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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0.87Ct Medium Yellow Beryl, Trillion, Vvs

0.87Ct Medium Yellow Beryl, Trillion, Vvs

7 x 7 mm (calibrated)

$ 20.88

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1.00Ct Light Golden Morganite, Oval, Vvs-Vs

1.00Ct Light Golden Morganite, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 52.80

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1.29Ct Purple-Pink Spinel, Cushion, Vs-Si

1.29Ct Purple-Pink Spinel, Cushion, Vs-Si

6.6 x 5.9 mm

$ 115.22

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1.77Ct Medium Yellow Beryl, Trillion, Vvs

1.77Ct Medium Yellow Beryl, Trillion, Vvs

8.9 x 8.5 mm

$ 46.73

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0.78Ct Black Diamond, Round, Opaque
Diamond Product Video (669020)

0.78Ct Black Diamond, Round, Opaque

5.3 mm

$ 748.80

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 12.37

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0.93Ct Medium Yellow Beryl, Oval, Vvs-Vs

0.93Ct Medium Yellow Beryl, Oval, Vvs-Vs

7.2 x 5.2 mm

$ 27.90

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0.22Ct Light Pink Morganite, Round, Vvs-Vs

0.22Ct Light Pink Morganite, Round, Vvs-Vs

4.2 mm

$ 11.00

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5.01Ct Light Pink Morganite, Round, Translucent

5.01Ct Light Pink Morganite, Round, Translucent

11 mm (calibrated)

$ 69.37

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0.81Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

0.81Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

5.5 x 4.4 mm

$ 202.50

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0.26Ct K Diamond, Round, Vs-Si
Diamond Product Video (700079)

0.26Ct K Diamond, Round, Vs-Si

4 mm (calibrated)

$ 500.24

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0.56Ct Light Pink Spinel, Cushion, Vs

0.56Ct Light Pink Spinel, Cushion, Vs

5.2 x 4.1 mm

$ 47.04

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1.07Ct Black Diamond, Square, Opaque
Diamond Product Video (677842)

1.07Ct Black Diamond, Square, Opaque

5 x 5 mm (calibrated)

$ 612.00

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2.09Ct Light Golden-Yellow Golden Beryl, Round, Vvs

2.09Ct Light Golden-Yellow Golden Beryl, Round, Vvs

9 mm (calibrated)

$ 60.70

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0.37Ct Medium Light-Pink Morganite, Trillion, Vvs-Vs

0.37Ct Medium Light-Pink Morganite, Trillion, Vvs-Vs

5 x 4.8 mm

$ 19.98

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1.26Ct Medium Yellow Chrysoberyl, Pear Shape, Vvs

1.26Ct Medium Yellow Chrysoberyl, Pear Shape, Vvs

8 x 6 mm (calibrated)

$ 176.92

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2.39Ct Light Yellow Beryl, Oval, Vvs-Vs

2.39Ct Light Yellow Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 57.36

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1.36Ct Light Yellow Beryl, Trillion, Vs

1.36Ct Light Yellow Beryl, Trillion, Vs

8 x 8 mm (calibrated)

$ 39.17

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0.14Ctw H Diamond, Marquise, Vvs
Diamond Product Video (740695)

0.14Ctw H Diamond, Marquise, Vvs

4.2 x 2.1 mm

$ 586.25

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0.52Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

0.52Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 15.60

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21.63Ctw Black Spinel, Oval, Opaque

21.63Ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 85.66

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0.79Ct Golden Beryl, Oval, Vs

0.79Ct Golden Beryl, Oval, Vs

7 x 5 mm (calibrated)

$ 23.70

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0.82Ct Dark Purple Spinel, Cushion, Vvs-Vs

0.82Ct Dark Purple Spinel, Cushion, Vvs-Vs

5.9 x 5.2 mm

$ 68.88

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0.68Ct Light Pink Morganite, Pear Shape, Vvs

0.68Ct Light Pink Morganite, Pear Shape, Vvs

8 x 5 mm (calibrated)

$ 49.37

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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

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 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 -> 8 star ratings

The website was easy to use and there were a lot of good options, I was satisfied.

Posted By Brielly in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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