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Home › Gemstones › Natural Untreated Gemstones

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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0.74ct Orange Morganite, Pear Shape, VVS-VS

0.74ct Orange Morganite, Pear Shape, VVS-VS

7.7 x 5.8 mm

$ 32.43

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1.05ct Yellow Beryl, Oval, VVS-VS

1.05ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 20.92

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2.06ctw Yellow Morganite, Oval, VS

2.06ctw Yellow Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 81.07

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2.99ctw White Topaz, Cushion, VVS-VS

2.99ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 16.38

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0.26ct Pink Morganite, Round, VS

0.26ct Pink Morganite, Round, VS

4.5 mm (calibrated)

$ 10.79

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1.19ct Yellow Beryl, Pear Shape, VVS-VS

1.19ct Yellow Beryl, Pear Shape, VVS-VS

9.1 x 6.3 mm

$ 23.70

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1.20ct Yellow Chrysoberyl, Pear Shape, VVS

1.20ct Yellow Chrysoberyl, Pear Shape, VVS

8 x 5.3 mm

$ 139.84

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 16.28

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1.16ct Yellow Beryl, Cushion, VVS

1.16ct Yellow Beryl, Cushion, VVS

8 x 6 mm (calibrated)

$ 27.73

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1.33ct Yellow Beryl, Trillion, VS

1.33ct Yellow Beryl, Trillion, VS

8 x 8 mm (calibrated)

$ 31.79

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7.44ctw Black Spinel, Round, Opaque

7.44ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 28.53

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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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0.03ct White Diamond, Round, VVS

0.03ct White Diamond, Round, VVS

2 mm (calibrated)

$ 68.48

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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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0.68ct Black Diamond, Square, Opaque
Diamond Product Video (678135)

0.68ct Black Diamond, Square, Opaque

4.2 x 4.1 mm

$ 338.64

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1.18ct Yellow Beryl, Oval, VS

1.18ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 22.53

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0.02ct Black Diamond, Round, Opaque

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.28

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7.24ct Pink Morganite, Round, Translucent

7.24ct Pink Morganite, Round, Translucent

12 mm (calibrated)

$ 78.53

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1.33ct Yellow Beryl, Oval, VVS

1.33ct Yellow Beryl, Oval, VVS

9 x 6.7 mm

$ 26.49

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0.58ct Pink Spinel, Cushion, VS

0.58ct Pink Spinel, Cushion, VS

5.2 x 4.8 mm

$ 48.14

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0.65ct Yellow Beryl, Oval, VVS

0.65ct Yellow Beryl, Oval, VVS

7 x 5 mm (calibrated)

$ 16.19

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2.61ct Yellow Rutile Topaz, Emerald Cut, Transparent

2.61ct Yellow Rutile Topaz, Emerald Cut, Transparent

8.9 x 7.6 mm

$ 54.16

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0.95ct Pink Spinel, Cushion, VS

0.95ct Pink Spinel, Cushion, VS

5.9 x 5.5 mm

$ 70.97

View Gem
3.13ct Brown Rutile Topaz, Pear Shape, Transparent

3.13ct Brown Rutile Topaz, Pear Shape, Transparent

12.1 x 7.5 mm

$ 64.95

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

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

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 -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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