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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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0.77ct Pink Morganite, Oval, VVS-VS

0.77ct Pink Morganite, Oval, VVS-VS

7.9 x 5.4 mm

$ 53.68

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3.51ct White Topaz, Oval, Transparent

3.51ct White Topaz, Oval, Transparent

10 x 8 mm (calibrated)

$ 19.23

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4.02ctw White Topaz, Square, VS

4.02ctw White Topaz, Square, VS

4 x 4 mm (calibrated)

$ 30.83

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0.14ctw White Diamond, Marquise, VVS
Diamond Product Video (740697)

0.14ctw White Diamond, Marquise, VVS

4 x 2 mm (calibrated)

$ 486.59

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2.30ctw Yellow Beryl, Trillion, VVS-VS

2.30ctw Yellow Beryl, Trillion, VVS-VS

8 x 8 mm (calibrated)

$ 61.35

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14.84ctw Black Spinel, Round, Opaque

14.84ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 48.77

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0.90ct Violet Spinel, Cushion, VS

0.90ct Violet Spinel, Cushion, VS

6.5 x 5.6 mm

$ 45.23

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1.14ct Yellow Chrysoberyl, Oval, VS
Chrysoberyl Product Video (366298)

1.14ct Yellow Chrysoberyl, Oval, VS

7.8 x 5.6 mm

$ 132.92

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1.19ct Pink Morganite, Round, Transparent

1.19ct Pink Morganite, Round, Transparent

7 mm (calibrated)

$ 46.22

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1.86ct Yellow Beryl, Trillion, VVS

1.86ct Yellow Beryl, Trillion, VVS

9 x 9 mm (calibrated)

$ 44.46

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2.13ctw Yellow Beryl, Oval, VS

2.13ctw Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 42.43

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1.98ct Yellow Golden Beryl, Oval, VVS

1.98ct Yellow Golden Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 47.73

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0.07ct Black Diamond, Round, Opaque

0.07ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 33.87

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3.14ctw White Topaz, Cushion, VVS-VS

3.14ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 17.20

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1.22ct Pink Morganite, Oval, VVS-VS

1.22ct Pink Morganite, Oval, VVS-VS

8.4 x 6.3 mm

$ 53.47

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0.13ctw Black Diamond, Square, Opaque

0.13ctw Black Diamond, Square, Opaque

2.2 x 2.1 mm

$ 64.74

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4.47ct Pink Morganite, Oval, Transparent

4.47ct Pink Morganite, Oval, Transparent

12 x 10 mm (calibrated)

$ 48.97

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0.19ct White Diamond, Round, VVS-VS

0.19ct White Diamond, Round, VVS-VS

3.5 mm (calibrated)

$ 319.00

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25.72ctw Black Spinel, Baguette, Opaque
Spinel Product Video (372535)

25.72ctw Black Spinel, Baguette, Opaque

17.7 x 8.3 mm

$ 202.33

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9.42ctw Black Spinel, Trillion, Opaque

9.42ctw Black Spinel, Trillion, Opaque

10 x 10 mm (calibrated)

$ 46.91

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0.86ct Yellow Beryl, Trillion, VVS

0.86ct Yellow Beryl, Trillion, VVS

7 x 7 mm (calibrated)

$ 17.13

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0.40ct Black Diamond, Square, Opaque

0.40ct Black Diamond, Square, Opaque

3.7 x 3.5 mm

$ 199.20

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4.40ctw White Topaz, Square, VS

4.40ctw White Topaz, Square, VS

4 x 4 mm (calibrated)

$ 33.75

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1.12ct Purple Spinel, Cushion, VS

1.12ct Purple Spinel, Cushion, VS

6.7 x 5.4 mm

$ 67.54

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 -> 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

It was great!

Posted By Annie in September, 2025
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

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very food

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