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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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2.87Ct Medium Yellow Beryl, Oval, Vvs-Vs

2.87Ct Medium Yellow Beryl, Oval, Vvs-Vs

11 x 9 mm (calibrated)

$ 82.66

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2.21Ctw Multicolor Andalusite, Oval, Vs

2.21Ctw Multicolor Andalusite, Oval, Vs

5 x 3 mm (calibrated)

$ 142.25

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3.70Ctw Multicolor Andalusite, Round, Vs

3.70Ctw Multicolor Andalusite, Round, Vs

3.1 mm

$ 196.00

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0.12Ctw Black Diamond, Square, Opaque

0.12Ctw Black Diamond, Square, Opaque

1.9 x 1.8 mm

$ 72.00

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0.75Ct Light Golden Morganite, Pear Shape, Vs

0.75Ct Light Golden Morganite, Pear Shape, Vs

7.8 x 5.6 mm

$ 39.60

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0.82Ct Yellowish Green Chrysoberyl Cat's Eye, Oval, Translucent

0.82Ct Yellowish Green Chrysoberyl Cat's Eye, Oval, Translucent

6 x 4 mm (calibrated)

$ 29.52

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2.50Ctw Clear White Topaz, Cushion, Vvs-Vs

2.50Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 16.50

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5.03Ct Very Light Golden-Brown Rutile Topaz, Pear Shape, Transparent

5.03Ct Very Light Golden-Brown Rutile Topaz, Pear Shape, Transparent

15.3 x 8.7 mm

$ 125.75

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4.58Ctw White Topaz, Cushion, Vvs-Vs

4.58Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 30.23

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1.12Ct Light Yellow Chrysoberyl, Pear Shape, Vvs

1.12Ct Light Yellow Chrysoberyl, Pear Shape, Vvs

7.2 x 5.8 mm

$ 157.25

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3.60Ct White Topaz, Round, Vvs-Vs

3.60Ct White Topaz, Round, Vvs-Vs

9.5 mm (calibrated)

$ 38.16

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0.06Ct Black Diamond, Round, Opaque

0.06Ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 23.54

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1.93Ct Medium Yellow Beryl, Round, Vvs-Vs

1.93Ct Medium Yellow Beryl, Round, Vvs-Vs

8 mm (calibrated)

$ 55.58

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0.99Ct Deep Purple Spinel, Pear Shape, Vs

0.99Ct Deep Purple Spinel, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 98.02

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2.82Ct Light Gold Golden Beryl, Oval, Vvs

2.82Ct Light Gold Golden Beryl, Oval, Vvs

11 x 9 mm (calibrated)

$ 85.02

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0.07Ctw E Diamond, Round, Vvs

0.07Ctw E Diamond, Round, Vvs

2 mm (calibrated)

$ 192.50

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0.58Ct Very Light Pink Morganite, Pear Shape, Vvs

0.58Ct Very Light Pink Morganite, Pear Shape, Vvs

7.3 x 4.6 mm

$ 38.28

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0.60Ct Light Purple Spinel, Cushion, Vs

0.60Ct Light Purple Spinel, Cushion, Vs

5.5 x 4.7 mm

$ 36.00

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0.17Ctw Black Diamond, Square, Opaque

0.17Ctw Black Diamond, Square, Opaque

2.2 x 2.1 mm

$ 102.00

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5.89Ct Light Pink Morganite, Pear Shape, Transparent

5.89Ct Light Pink Morganite, Pear Shape, Transparent

14 x 10 mm (calibrated)

$ 77.75

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4.11Ct White Topaz, Heart, Vvs-Vs

4.11Ct White Topaz, Heart, Vvs-Vs

10 x 10 mm (calibrated)

$ 41.10

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0.86Ct Deep Purple Spinel, Cushion, Vs

0.86Ct Deep Purple Spinel, Cushion, Vs

5.9 x 5.1 mm

$ 123.84

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8.92Ctw Black Spinel, Trillion, Opaque

8.92Ctw Black Spinel, Trillion, Opaque

10 x 10 mm (calibrated)

$ 58.87

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4.14Ct Clear White Topaz, Round, Vvs-Vs

4.14Ct Clear White Topaz, Round, Vvs-Vs

9 mm (calibrated)

$ 27.32

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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 have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
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
Source: Bizrate

Overall Rating -> 10 star ratings

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection prices are reasonable!

Posted By ToRa62 in April, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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