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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

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For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
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Golden Natural Untreated Gemstones
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Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
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Red Natural Untreated Gemstones
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Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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0.26Ct Light Sky Blue Aquamarine, Baguette, Vs

0.26Ct Light Sky Blue Aquamarine, Baguette, Vs

5 x 3 mm (calibrated)

$ 43.68

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0.92Ct Raspberry Red Tone Spinel, Cushion, Vs

0.92Ct Raspberry Red Tone Spinel, Cushion, Vs

6 x 5.3 mm

$ 132.48

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1.39Ct Medium Purple Grey Spinel, Cushion, Vs

1.39Ct Medium Purple Grey Spinel, Cushion, Vs

6.7 x 6.4 mm

$ 114.49

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4.12Ct Warm White Topaz, Round, Vs-Si

4.12Ct Warm White Topaz, Round, Vs-Si

9.5 mm (calibrated)

$ 29.66

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0.63Ct Medium Purple Spinel, Cushion, Vvs-Vs

0.63Ct Medium Purple Spinel, Cushion, Vvs-Vs

4.8 x 4.5 mm

$ 52.92

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0.66Ct Light Grayish Violet Spinel, Cushion, Vs

0.66Ct Light Grayish Violet Spinel, Cushion, Vs

5 x 4.5 mm

$ 55.44

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0.45Ct Very Light Pink Morganite, Round, Vs

0.45Ct Very Light Pink Morganite, Round, Vs

5.3 mm

$ 22.50

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0.31Ct Medium Light Brown Color-Change Sapphire, Pear Shape, Vvs

0.31Ct Medium Light Brown Color-Change Sapphire, Pear Shape, Vvs

4.8 x 3.9 mm

$ 31.00

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17.60Ctw Black Spinel, Heart, Opaque

17.60Ctw Black Spinel, Heart, Opaque

13 x 13 mm (calibrated)

$ 69.70

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2.18Ctw Multicolor Andalusite, Oval, Vs

2.18Ctw Multicolor Andalusite, Oval, Vs

5.2 x 4.2 mm

$ 140.83

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1.51Ct Cognac Diamond, Cushion, Si
Diamond Product Video (382116)

1.51Ct Cognac Diamond, Cushion, Si

6 x 6 mm (calibrated)

$ 4,249.32

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0.17Ctw L Diamond, Round, Vvs-Vs

0.17Ctw L Diamond, Round, Vvs-Vs

2.7 mm (calibrated)

$ 366.16

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12.08Ctw Clear White Topaz, Cushion, Vvs-Vs

12.08Ctw Clear White Topaz, Cushion, Vvs-Vs

12 x 10 mm (calibrated)

$ 96.64

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1.14Ct Lemon Yellow Chrysoberyl, Oval, Vs
Chrysoberyl Product Video (366298)

1.14Ct Lemon Yellow Chrysoberyl, Oval, Vs

7.8 x 5.6 mm

$ 160.15

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1.59Ct Light Yellow Beryl, Oval, Vvs

1.59Ct Light Yellow Beryl, Oval, Vvs

9.9 x 7.5 mm

$ 38.16

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0.26Ct Baby Blue Aquamarine, Round, Vvs

0.26Ct Baby Blue Aquamarine, Round, Vvs

4 mm (calibrated)

$ 43.68

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0.07Ct Black Diamond, Round, Opaque

0.07Ct Black Diamond, Round, Opaque

2.7 mm (calibrated)

$ 28.87

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2.92Ctw White Topaz, Cushion, Vvs-Vs

2.92Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.27

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1.49Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

1.49Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 35.76

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5.28Ct Flamingo Pink Morganite, Pear Shape, Translucent

5.28Ct Flamingo Pink Morganite, Pear Shape, Translucent

15.6 x 9.8 mm

$ 26.40

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1.32Ct Medium Purple Spinel, Cushion, Vs

1.32Ct Medium Purple Spinel, Cushion, Vs

6.6 x 6.3 mm

$ 125.46

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4.33Ct White Topaz, Heart, Vvs-Vs

4.33Ct White Topaz, Heart, Vvs-Vs

10 x 10 mm (calibrated)

$ 43.30

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0.20Ctw L Diamond, Round, Vvs-Vs

0.20Ctw L Diamond, Round, Vvs-Vs

2.8 mm (calibrated)

$ 430.76

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1.02Ct Light Golden Morganite, Oval, Vs

1.02Ct Light Golden Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 48.36

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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

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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