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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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0.14Ct Champagne Diamond, Round, Vvs-Vs
Diamond Product Video (564582)

0.14Ct Champagne Diamond, Round, Vvs-Vs

3.2 mm

$ 256.61

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2.24Ct Pale Yellow Golden Beryl, Round, Vvs

2.24Ct Pale Yellow Golden Beryl, Round, Vvs

9 mm (calibrated)

$ 65.05

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1.27Ct Light Purple Spinel, Cushion, Vvs

1.27Ct Light Purple Spinel, Cushion, Vvs

6.7 x 6.3 mm

$ 96.56

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2.61Ctw Clear White Topaz, Cushion, Vvs-Vs

2.61Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 17.23

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0.59Ct Black Diamond, Round, Opaque
Diamond Product Video (668696)

0.59Ct Black Diamond, Round, Opaque

5 mm (calibrated)

$ 566.40

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3.19Ct White Topaz, Oval, Vvs-Vs

3.19Ct White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 21.06

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0.92Ct Coral Pink Tone Morganite, Pear Shape, Vvs-Vs

0.92Ct Coral Pink Tone Morganite, Pear Shape, Vvs-Vs

8.6 x 5.1 mm

$ 97.15

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26.87Ctw Black Spinel, Oval, Opaque

26.87Ctw Black Spinel, Oval, Opaque

18 x 13 mm (calibrated)

$ 106.40

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4.86Ctw White Topaz, Cushion, Vvs-Vs

4.86Ctw White Topaz, Cushion, Vvs-Vs

4.5 x 4.5 mm

$ 32.08

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1.10Ct Deep Lavender Spinel, Cushion, Vs

1.10Ct Deep Lavender Spinel, Cushion, Vs

6.6 x 5.2 mm

$ 94.38

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1.35Ct Very Light Pink Morganite, Round, Vvs

1.35Ct Very Light Pink Morganite, Round, Vvs

7 mm (calibrated)

$ 64.01

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0.88Ct Light Gold Beryl, Oval, Vvs

0.88Ct Light Gold Beryl, Oval, Vvs

8 x 6 mm (calibrated)

$ 21.12

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0.83Ct Medium Purple Spinel, Cushion, Vs

0.83Ct Medium Purple Spinel, Cushion, Vs

5.9 x 5.1 mm

$ 49.42

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0.82Ct Light Yellow Morganite, Cushion, Vs

0.82Ct Light Yellow Morganite, Cushion, Vs

6 x 6 mm (calibrated)

$ 59.53

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8.31Ct Light Pink Morganite, Oval, Translucent

8.31Ct Light Pink Morganite, Oval, Translucent

16 x 12 mm (calibrated)

$ 41.55

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4.33Ct Clear White Topaz, Round, Vvs-Vs

4.33Ct Clear White Topaz, Round, Vvs-Vs

10 mm (calibrated)

$ 24.29

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1.04Ct Black Diamond, Square, Opaque
Diamond Product Video (677848)

1.04Ct Black Diamond, Square, Opaque

4.7 x 4.6 mm

$ 713.81

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0.17Ct L Diamond, Round, Vvs-Vs

0.17Ct L Diamond, Round, Vvs-Vs

3.5 mm (calibrated)

$ 343.88

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1.28Ct Light Pink Morganite, Pear Shape, Vvs-Vs

1.28Ct Light Pink Morganite, Pear Shape, Vvs-Vs

8.6 x 6.3 mm

$ 67.58

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2.46Ct Tuscany Yellow Golden Beryl, Oval, Vvs

2.46Ct Tuscany Yellow Golden Beryl, Oval, Vvs

10 x 8 mm (calibrated)

$ 81.18

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3.27Ct Dijon Yellow Beryl, Oval, Vvs

3.27Ct Dijon Yellow Beryl, Oval, Vvs

11 x 9 mm (calibrated)

$ 86.33

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2.06Ct Orangeish Brown Rutile Topaz, Trillion, Transparent

2.06Ct Orangeish Brown Rutile Topaz, Trillion, Transparent

9.1 x 8.2 mm

$ 51.50

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3.74Ctw Multicolor Andalusite, Round, Vs

3.74Ctw Multicolor Andalusite, Round, Vs

3 mm (calibrated)

$ 198.12

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4.12Ctw Clear White Topaz, Square, Vs

4.12Ctw Clear White Topaz, Square, Vs

4 x 4 mm (calibrated)

$ 38.06

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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

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

Excellent options

Posted By CJ in February, 2026
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

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 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

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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