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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
Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
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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0.62Ct Purplish Grey Spinel, Oval, Vvs-Vs

0.62Ct Purplish Grey Spinel, Oval, Vvs-Vs

5.9 x 4.2 mm

$ 62.00

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2.06Ct Light Gold Beryl, Round, Vvs-Vs

2.06Ct Light Gold Beryl, Round, Vvs-Vs

8 mm (calibrated)

$ 54.38

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0.21Ct L Diamond, Round, Vvs

0.21Ct L Diamond, Round, Vvs

3.8 mm

$ 424.79

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4.66Ctw White Topaz, Cushion, Vvs-Vs

4.66Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 30.76

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0.69Ct Light Reddish Purple Spinel, Cushion, Vvs

0.69Ct Light Reddish Purple Spinel, Cushion, Vvs

5.2 x 4.9 mm

$ 41.40

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0.33Ct Very Light Pink Morganite, Round, Vs

0.33Ct Very Light Pink Morganite, Round, Vs

4.8 mm

$ 16.50

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2.78Ct Light Pink Morganite, Round, Transparent

2.78Ct Light Pink Morganite, Round, Transparent

9.5 mm (calibrated)

$ 36.70

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3.35Ctw White Topaz, Marquise, Vs

3.35Ctw White Topaz, Marquise, Vs

11.7 x 5 mm

$ 22.12

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1.75Ct Light Yellow Beryl, Oval, Vvs

1.75Ct Light Yellow Beryl, Oval, Vvs

9 x 7 mm (calibrated)

$ 42.00

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4.87Ct Warm White Topaz, Oval, Vs

4.87Ct Warm White Topaz, Oval, Vs

11 x 9 mm (calibrated)

$ 32.15

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4.71Ctw White Topaz, Cushion, Vs

4.71Ctw White Topaz, Cushion, Vs

4.5 x 4.5 mm

$ 31.09

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2.94Ctw Clear White Topaz, Cushion, Vvs-Vs
Topaz Product Video (387768)

2.94Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.40

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14.01Ct Black Spinel, Baguette, Opaque

14.01Ct Black Spinel, Baguette, Opaque

20 x 10 mm

$ 55.48

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4.13Ctw Clear White Topaz, Square, Vs

4.13Ctw Clear White Topaz, Square, Vs

4 x 4 mm (calibrated)

$ 38.16

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0.45Ct Deep Red Spinel, Pear Shape, Vs-Si

0.45Ct Deep Red Spinel, Pear Shape, Vs-Si

5.6 x 4 mm

$ 45.00

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1.19Ct Light Gold Beryl, Trillion, Vvs-Vs

1.19Ct Light Gold Beryl, Trillion, Vvs-Vs

8 x 8 mm (calibrated)

$ 28.56

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1.73Ct Light Pink Morganite, Oval, Vs

1.73Ct Light Pink Morganite, Oval, Vs

9 x 7 mm (calibrated)

$ 91.34

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3.74Ctw Multicolor Andalusite, Oval, Vs-Si
Andalusite Product Video (206738)

3.74Ctw Multicolor Andalusite, Oval, Vs-Si

6 x 4 mm (calibrated)

$ 222.16

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0.71Ct Berry Purple Spinel, Oval, Vs

0.71Ct Berry Purple Spinel, Oval, Vs

6.5 x 4.9 mm

$ 71.00

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5.16Ct Light Blue Aquamarine, Pear Shape, Vs-Si
Aquamarine Product Video (730042)

5.16Ct Light Blue Aquamarine, Pear Shape, Vs-Si

15 x 10 mm (calibrated)

$ 412.80

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1.11Ct Light Purple Spinel, Cushion, Vvs-Vs

1.11Ct Light Purple Spinel, Cushion, Vvs-Vs

6.6 x 5.4 mm

$ 73.32

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0.06Ct D Diamond, Marquise, Vvs

0.06Ct D Diamond, Marquise, Vvs

4 x 1.9 mm

$ 251.25

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3.76Ctw Multicolor Andalusite, Oval, Vs-Si
Andalusite Product Video (206360)

3.76Ctw Multicolor Andalusite, Oval, Vs-Si

6 x 4 mm (calibrated)

$ 223.34

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3.26Ctw White Topaz, Cushion, Vvs-Vs

3.26Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 21.52

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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 good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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