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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
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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2.32Ctw Multicolor Andalusite, Round, Vs-Si

2.32Ctw Multicolor Andalusite, Round, Vs-Si

4 mm (calibrated)

$ 137.81

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2.91Ctw White Topaz, Cushion, Vvs-Vs

2.91Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.21

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2.56Ct Warm Yellow Beryl, Oval, Vs

2.56Ct Warm Yellow Beryl, Oval, Vs

10 x 8 mm (calibrated)

$ 73.73

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0.86Ct Light Golden Morganite, Pear Shape, Vs

0.86Ct Light Golden Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 56.76

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0.53Ct Flamingo Pink Morganite, Pear Shape, Vvs

0.53Ct Flamingo Pink Morganite, Pear Shape, Vvs

8.2 x 4.3 mm

$ 38.48

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0.84Ct Medium-Light Yellow Beryl, Pear Shape, Vs

0.84Ct Medium-Light Yellow Beryl, Pear Shape, Vs

8.1 x 5.2 mm

$ 22.18

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1.73Ct Light Gold Beryl, Oval, Vvs-Vs

1.73Ct Light Gold Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 41.52

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28.79Ctw Black Spinel, Fancy, Opaque

28.79Ctw Black Spinel, Fancy, Opaque

18.1 x 11.7 mm

$ 162.20

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0.05Ct Black Diamond, Round, Opaque

0.05Ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 17.51

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1.43Ct Dark Red Spinel, Cushion, Vs

1.43Ct Dark Red Spinel, Cushion, Vs

6.7 x 5.9 mm

$ 185.90

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0.15Ctw H Diamond, Round, Vvs-Vs
Diamond Product Video (565088)

0.15Ctw H Diamond, Round, Vvs-Vs

2.7 mm (calibrated)

$ 328.36

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10.42Ct Medium-Light Pink Morganite, Pear Shape, Transparent

10.42Ct Medium-Light Pink Morganite, Pear Shape, Transparent

20.3 x 12.6 mm

$ 137.54

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0.90Ct Light Earthy Yellow Beryl, Cushion, Vs

0.90Ct Light Earthy Yellow Beryl, Cushion, Vs

7 x 5.2 mm

$ 25.92

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2.78Ctw Clear White Topaz, Cushion, Vvs-Vs

2.78Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 18.35

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0.22Ct Black Diamond, Round, Opaque

0.22Ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 126.10

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1.50Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

1.50Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 36.00

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4.73Ct Clear White Topaz, Oval, Vvs

4.73Ct Clear White Topaz, Oval, Vvs

11 x 9 mm (calibrated)

$ 37.46

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0.91Ct Light Gold Beryl, Oval, Vvs

0.91Ct Light Gold Beryl, Oval, Vvs

8.1 x 5.7 mm

$ 20.93

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3.09Ct Medium Pink Morganite, Oval, Transparent

3.09Ct Medium Pink Morganite, Oval, Transparent

11.1 x 8.5 mm

$ 42.78

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0.39Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

0.39Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

6 x 4 mm (calibrated)

$ 21.06

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1.12Ct Light Yellow Beryl, Oval, Vvs-Vs

1.12Ct Light Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 25.76

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7.19Ctw Black Spinel, Round, Opaque

7.19Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 28.48

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1.15Ct Flamingo Pink Morganite, Pear Shape, Vvs-Vs

1.15Ct Flamingo Pink Morganite, Pear Shape, Vvs-Vs

10.3 x 5.5 mm

$ 151.80

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0.57Ct Black Diamond, Round, Opaque
Diamond Product Video (668698)

0.57Ct Black Diamond, Round, Opaque

4.7 mm

$ 547.20

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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

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

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