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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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1.99ct Yellow Golden Beryl, Oval, VVS-VS

1.99ct Yellow Golden Beryl, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 54.51

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1.00ct Yellow Morganite, Oval, VVS-VS

1.00ct Yellow Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 43.82

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16.97ctw Black Spinel, Heart, Opaque

16.97ctw Black Spinel, Heart, Opaque

13 x 13 mm (calibrated)

$ 55.78

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14.33ctw Black Spinel, Round, Opaque

14.33ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 44.59

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1.68ctw Orange Morganite, Oval, VVS-VS

1.68ctw Orange Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 101.24

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1.01ct Yellow Chrysoberyl, Oval, VVS-VS

1.01ct Yellow Chrysoberyl, Oval, VVS-VS

7.2 x 5.2 mm

$ 117.69

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0.43ct Yellow Beryl, Oval, VS

0.43ct Yellow Beryl, Oval, VS

6 x 4 mm (calibrated)

$ 8.21

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4.01ctw Multicolor Andalusite, Round, VS

4.01ctw Multicolor Andalusite, Round, VS

3.3 mm

$ 146.92

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1.04ct Purple Spinel, Cushion, VVS-VS

1.04ct Purple Spinel, Cushion, VVS-VS

5.6 x 5.4 mm

$ 62.67

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0.08ct Black Diamond, Round, Opaque

0.08ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 38.71

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0.14ct Black Diamond, Round, Opaque
Diamond Product Video (683050)

0.14ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 195.05

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1.18ct Yellow Beryl, Oval, VS

1.18ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 29.38

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0.15ct Black Diamond, Round, Opaque

0.15ct Black Diamond, Round, Opaque

3.2 mm

$ 71.36

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0.84ct Purple Spinel, Cushion, VVS

0.84ct Purple Spinel, Cushion, VVS

5.9 x 5.3 mm

$ 69.72

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10.08ctw Black Spinel, Round, Opaque

10.08ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 38.65

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1.14ct Purple Spinel, Cushion, VS

1.14ct Purple Spinel, Cushion, VS

6 x 5.3 mm

$ 81.18

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1.96ctw Pink Morganite, Oval, VS

1.96ctw Pink Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 85.90

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0.98ct Violet Spinel, Pear Shape, VS

0.98ct Violet Spinel, Pear Shape, VS

8.4 x 5.1 mm

$ 91.78

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0.51ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

0.51ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

5.2 x 4.1 mm

$ 15.24

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3.47ct Brown Rutile Topaz, Pear Shape, Transparent

3.47ct Brown Rutile Topaz, Pear Shape, Transparent

12.6 x 7.5 mm

$ 72.00

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0.85ct Yellow Morganite, Pear Shape, VS

0.85ct Yellow Morganite, Pear Shape, VS

8 x 6 mm (calibrated)

$ 46.56

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0.36ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

0.36ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

4.4 x 4.4 mm

$ 10.76

View Gem
1.31ct Yellow Chrysoberyl, Pear Shape, VS
Chrysoberyl Product Video (366663)

1.31ct Yellow Chrysoberyl, Pear Shape, VS

8.3 x 6.2 mm

$ 152.65

View Gem
0.31ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

0.31ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

4 x 4 mm (calibrated)

$ 9.26

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 neat and to the point

Posted By Botha in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
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Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
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Overall Rating -> 10 star ratings

My experience was done with ease

Posted By Barb in October, 2025
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Overall Rating -> 8 star ratings

Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

Posted By Big Ricky in May, 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
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