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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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1.11Ct Pale Yellow Beryl, Cushion, Vs

1.11Ct Pale Yellow Beryl, Cushion, Vs

8 x 6 mm (calibrated)

$ 31.97

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7.14Ct Light Rose Pink Morganite, Pear Shape, Transparent

7.14Ct Light Rose Pink Morganite, Pear Shape, Transparent

16.7 x 10 mm

$ 94.25

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3.79Ctw White Topaz, Square, Si

3.79Ctw White Topaz, Square, Si

3.5 x 3.5 mm

$ 35.02

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1.47Ct Light Pink Morganite, Round, Vs

1.47Ct Light Pink Morganite, Round, Vs

7.5 mm (calibrated)

$ 135.83

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3.43Ctw Multicolor Andalusite, Round, Vs

3.43Ctw Multicolor Andalusite, Round, Vs

3.7 mm

$ 181.70

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0.72Ct Medium Pink Morganite, Pear Shape, Vs

0.72Ct Medium Pink Morganite, Pear Shape, Vs

7.8 x 5.7 mm

$ 47.52

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1.87Ctw Light Golden Morganite, Oval, Vs

1.87Ctw Light Golden Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 80.60

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0.63Ct Pale Yellow Beryl, Oval, Vvs

0.63Ct Pale Yellow Beryl, Oval, Vvs

7 x 5 mm (calibrated)

$ 15.12

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1.93Ctw Multicolor Andalusite, Oval, Vs-Si

1.93Ctw Multicolor Andalusite, Oval, Vs-Si

6 x 4 mm (calibrated)

$ 114.65

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1.64Ct Deep Lavender Spinel, Cushion, Vs

1.64Ct Deep Lavender Spinel, Cushion, Vs

7 x 5.9 mm

$ 123.47

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0.09Ctw Black Diamond, Square, Opaque

0.09Ctw Black Diamond, Square, Opaque

1.9 x 1.9 mm

$ 54.00

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0.96Ct Very Light Pink Morganite, Round, Vvs-Vs

0.96Ct Very Light Pink Morganite, Round, Vvs-Vs

7 mm (calibrated)

$ 44.93

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0.26Ctw Black Diamond, Round, Opaque

0.26Ctw Black Diamond, Round, Opaque

3 mm (calibrated)

$ 149.02

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3.90Ctw Warm White Topaz, Square, Vs

3.90Ctw Warm White Topaz, Square, Vs

4 x 4 mm (calibrated)

$ 36.04

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0.04Ct D Diamond, Round, Vvs

0.04Ct D Diamond, Round, Vvs

2 mm (calibrated)

$ 110.00

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6.56Ctw Black Spinel, Round, Opaque

6.56Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 30.31

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7.00Ct Medium Pink Morganite, Pear Shape, Translucent

7.00Ct Medium Pink Morganite, Pear Shape, Translucent

15.9 x 10.8 mm

$ 92.40

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0.72Ct Royal Yellow Beryl, Oval, Vs

0.72Ct Royal Yellow Beryl, Oval, Vs

7 x 5.3 mm

$ 21.60

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4.89Ct Light Coral Pink Morganite, Oval, Transparent

4.89Ct Light Coral Pink Morganite, Oval, Transparent

12.7 x 10 mm

$ 58.68

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8.89Ctw Black Spinel, Round, Opaque

8.89Ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 41.08

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0.18Ct Black Diamond, Round, Opaque

0.18Ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 103.16

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0.95Ct Medium Pink Spinel, Cushion, Vs

0.95Ct Medium Pink Spinel, Cushion, Vs

5.9 x 5.5 mm

$ 85.50

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2.79Ctw Clear White Topaz, Cushion, Vvs-Vs

2.79Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 18.42

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6.98Ctw Black Spinel, Round, Opaque

6.98Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 27.64

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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 -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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