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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
Purple Natural Untreated Gemstones
Red Natural Untreated Gemstones
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Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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1.48Ct Very Light Purple Spinel, Oval, Transparent

1.48Ct Very Light Purple Spinel, Oval, Transparent

8.4 x 5.7 mm

$ 83.99

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1.61Ctw Very Light Pink Morganite, Pear Shape, Vvs-Vs

1.61Ctw Very Light Pink Morganite, Pear Shape, Vvs-Vs

9.7 x 4 mm

$ 212.52

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2.17Ctw Multicolor Andalusite, Oval, Vs

2.17Ctw Multicolor Andalusite, Oval, Vs

5 x 3 mm (calibrated)

$ 139.67

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1.68Ct Champagne Diamond, Emerald Cut, Si
Diamond Product Video (382055)

1.68Ct Champagne Diamond, Emerald Cut, Si

7.5 x 5.6 mm

$ 3,438.34

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1.07Ct Reddish Purple Sapphire, Pear Shape, Vs
Sapphire Product Video (448516)

1.07Ct Reddish Purple Sapphire, Pear Shape, Vs

7.5 x 5 mm

$ 680.77

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0.53Ct Light Pink Spinel, Cushion, Vvs-Vs

0.53Ct Light Pink Spinel, Cushion, Vvs-Vs

4.7 x 4.3 mm

$ 44.52

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0.65Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

0.65Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 19.50

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1.16Ct Lavender Spinel, Cushion, Vvs-Vs

1.16Ct Lavender Spinel, Cushion, Vvs-Vs

6.3 x 5.4 mm

$ 91.87

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1.42Ct Medium Purple Sapphire, Cushion, Vs
Sapphire Product Video (448534)

1.42Ct Medium Purple Sapphire, Cushion, Vs

7.8 x 5.2 mm

$ 903.46

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0.78Ct Black Diamond, Round, Opaque
Diamond Product Video (668697)

0.78Ct Black Diamond, Round, Opaque

5.3 mm

$ 748.80

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0.56Ct Medium Light-Pink Morganite, Oval, Si

0.56Ct Medium Light-Pink Morganite, Oval, Si

7 x 5 mm (calibrated)

$ 28.00

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1.04Ct Medium Purple Spinel, Oval, Vs

1.04Ct Medium Purple Spinel, Oval, Vs

6.5 x 5.5 mm

$ 218.00

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0.66Ct Flamingo Pink Morganite, Pear Shape, Vvs

0.66Ct Flamingo Pink Morganite, Pear Shape, Vvs

9.3 x 4.6 mm

$ 47.92

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0.21Ctw J Diamond, Round, Vvs-Vs
Diamond Product Video (567423)

0.21Ctw J Diamond, Round, Vvs-Vs

3 mm (calibrated)

$ 452.32

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1.15Ct Reddish Purple Spinel, Cushion, Vvs

1.15Ct Reddish Purple Spinel, Cushion, Vvs

6.6 x 6.5 mm

$ 72.86

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4.35Ct Coral Pink Morganite, Pear Shape, Transparent

4.35Ct Coral Pink Morganite, Pear Shape, Transparent

15.3 x 9.2 mm

$ 60.23

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8.96Ct Medium Grey Star Sapphire, Round, Opaque
Star Sapphire Product Video (470805)

8.96Ct Medium Grey Star Sapphire, Round, Opaque

10.5 mm

$ 376.32

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1.22Ct Light Yellow Beryl, Cushion, Vvs

1.22Ct Light Yellow Beryl, Cushion, Vvs

8 x 6 mm (calibrated)

$ 35.14

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0.08Ctw Black Diamond, Round, Opaque

0.08Ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 28.01

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 12.37

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9.28Ct Grey Star Sapphire, Round, Opaque
Star Sapphire Product Video (470801)

9.28Ct Grey Star Sapphire, Round, Opaque

12 mm (calibrated)

$ 428.74

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0.73Ct Light Gold Beryl, Oval, Vvs-Vs

0.73Ct Light Gold Beryl, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 17.52

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0.13Ct Light Pink Morganite, Round, Vs

0.13Ct Light Pink Morganite, Round, Vs

3.5 mm (calibrated)

$ 6.50

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1.09Ct Lemon Yellow Chrysoberyl, Pear Shape, Vvs-Vs

1.09Ct Lemon Yellow Chrysoberyl, Pear Shape, Vvs-Vs

7.1 x 5.9 mm

$ 153.04

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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

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

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