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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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0.86Ct Light Golden Morganite, Oval, Vvs-Vs

0.86Ct Light Golden Morganite, Oval, Vvs-Vs

7.8 x 5.6 mm

$ 45.41

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4.28Ct Light Coral Pink Morganite, Round, Transparent

4.28Ct Light Coral Pink Morganite, Round, Transparent

10 mm (calibrated)

$ 56.50

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0.18Ctw Black Diamond, Square, Opaque

0.18Ctw Black Diamond, Square, Opaque

2.2 x 2.2 mm

$ 108.00

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15.27Ctw Black Spinel, Round, Opaque

15.27Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 60.47

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3.61Ctw Multicolor Andalusite, Oval, Vs-Si

3.61Ctw Multicolor Andalusite, Oval, Vs-Si

6 x 4 mm (calibrated)

$ 214.44

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2.75Ctw White Topaz, Cushion, Vvs-Vs

2.75Ctw White Topaz, Cushion, Vvs-Vs

4.5 x 4.5 mm

$ 18.16

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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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0.84Ct Light Yellow Morganite, Pear Shape, Vvs

0.84Ct Light Yellow Morganite, Pear Shape, Vvs

8 x 5.7 mm

$ 44.35

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6.63Ctw Black Spinel, Round, Opaque

6.63Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 35.00

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2.95Ct Light Pink Morganite, Round, Transparent

2.95Ct Light Pink Morganite, Round, Transparent

9 mm (calibrated)

$ 38.56

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2.75Ctw White Topaz, Cushion, Vvs-Vs

2.75Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 18.16

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0.41Ct Very Light Pink Morganite, Oval, Vvs-Vs

0.41Ct Very Light Pink Morganite, Oval, Vvs-Vs

5.9 x 4.5 mm

$ 22.14

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4.90Ct Coral Pink Morganite, Oval, Transparent

4.90Ct Coral Pink Morganite, Oval, Transparent

12 x 10 mm (calibrated)

$ 58.80

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1.46Ct Medium Violet Sapphire, Cushion, Vs
Sapphire Product Video (447871)

1.46Ct Medium Violet Sapphire, Cushion, Vs

7.3 x 5.4 mm

$ 843.31

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0.48Ct Light Pink Morganite, Marquise, Vs

0.48Ct Light Pink Morganite, Marquise, Vs

8.5 x 3.9 mm

$ 21.60

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0.75Ct Medium Yellow Beryl, Trillion, Vvs

0.75Ct Medium Yellow Beryl, Trillion, Vvs

7 x 7 mm (calibrated)

$ 18.00

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0.05Ct Black Diamond, Round, Opaque

0.05Ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 17.51

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2.95Ctw White Topaz, Cushion, Vvs-Vs

2.95Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 19.48

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0.98Ct Grayish Violet Spinel, Pear Shape, Vs

0.98Ct Grayish Violet Spinel, Pear Shape, Vs

8.4 x 5.1 mm

$ 110.58

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2.23Ctw Light Yellow Beryl, Oval, Vs

2.23Ctw Light Yellow Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 53.52

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1.66Ct Light Purple Spinel, Cushion, Vs

1.66Ct Light Purple Spinel, Cushion, Vs

7.1 x 5.6 mm

$ 139.44

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0.15Ct Black Diamond, Square, Opaque

0.15Ct Black Diamond, Square, Opaque

2.6 x 2.7 mm

$ 90.00

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7.48Ctw White Topaz, Oval, Vvs-Vs

7.48Ctw White Topaz, Oval, Vvs-Vs

11 x 9 mm (calibrated)

$ 69.12

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1.59Ct Purple-Pink Spinel, Cushion, Vvs-Vs

1.59Ct Purple-Pink Spinel, Cushion, Vvs-Vs

6.7 x 5.6 mm

$ 137.50

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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

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
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 -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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