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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
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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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1.23Ct Medium Purple Spinel, Oval, Vs

1.23Ct Medium Purple Spinel, Oval, Vs

6.9 x 5.5 mm

$ 179.99

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2.94Ctw Clear White Topaz, Cushion, Vvs-Vs

2.94Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.40

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0.14Ctw I Diamond, Round, Vvs-Vs

0.14Ctw I Diamond, Round, Vvs-Vs

2.7 mm (calibrated)

$ 306.46

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1.16Ct Light Yellow Beryl, Oval, Vvs-Vs

1.16Ct Light Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 30.62

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1.65Ct Yellowish Gold Beryl, Round, Vvs

1.65Ct Yellowish Gold Beryl, Round, Vvs

8 mm (calibrated)

$ 39.60

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0.93Ct Grey Purple Spinel, Cushion, Vs

0.93Ct Grey Purple Spinel, Cushion, Vs

5.7 x 5.1 mm

$ 56.32

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1.77Ctw Light Gold Beryl, Oval, Vs

1.77Ctw Light Gold Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 42.48

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0.67Ct Medium-Light Purple Spinel, Pear Shape, Vs-Si

0.67Ct Medium-Light Purple Spinel, Pear Shape, Vs-Si

5.8 x 5 mm

$ 66.34

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0.22Ctw Black Diamond, Square, Opaque

0.22Ctw Black Diamond, Square, Opaque

2.3 x 2.2 mm

$ 132.00

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3.03Ctw Light Golden-Yellow Golden Beryl, Oval, Vvs-Vs

3.03Ctw Light Golden-Yellow Golden Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 79.99

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1.36Ct Boysenberry Spinel, Cushion, Vvs-Vs

1.36Ct Boysenberry Spinel, Cushion, Vvs-Vs

6.5 x 5.8 mm

$ 120.64

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0.72Ct Light Purple Spinel, Cushion, Vs

0.72Ct Light Purple Spinel, Cushion, Vs

4.9 x 4.4 mm

$ 60.48

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1.42Ctw White Topaz, Oval, Vvs

1.42Ctw White Topaz, Oval, Vvs

6.2 x 4.2 mm

$ 11.93

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2.12Ct Light Yellow Beryl, Trillion, Vs

2.12Ct Light Yellow Beryl, Trillion, Vs

9 x 9 mm (calibrated)

$ 54.72

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0.15Ctw I Diamond, Round, Vvs-Vs

0.15Ctw I Diamond, Round, Vvs-Vs

2.8 mm (calibrated)

$ 328.36

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8.26Ctw White Topaz, Square, Vvs

8.26Ctw White Topaz, Square, Vvs

5 x 5 mm (calibrated)

$ 82.93

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1.17Ct Dark Purple Spinel, Cushion, Vvs-Vs
Spinel Product Video (742827)

1.17Ct Dark Purple Spinel, Cushion, Vvs-Vs

6.4 x 5.6 mm

$ 234.00

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1.28Ct Very Light Pink Morganite, Round, Vvs-Vs

1.28Ct Very Light Pink Morganite, Round, Vvs-Vs

7 mm (calibrated)

$ 59.90

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1.69Ct Deep Lavender Spinel, Cushion, Vs

1.69Ct Deep Lavender Spinel, Cushion, Vs

6.6 x 6.5 mm

$ 127.22

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6.10Ct Light Pink Morganite, Pear Shape, Translucent

6.10Ct Light Pink Morganite, Pear Shape, Translucent

15.2 x 11.1 mm

$ 30.50

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3.30Ct Clear White Topaz, Oval, Transparent

3.30Ct Clear White Topaz, Oval, Transparent

10 x 8 mm (calibrated)

$ 21.78

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0.55Ct Dark Grey Purple Spinel, Cushion, Vvs

0.55Ct Dark Grey Purple Spinel, Cushion, Vvs

5 x 4 mm (calibrated)

$ 46.20

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3.09Ctw Yellowish Gold Golden Beryl, Oval, Vs

3.09Ctw Yellowish Gold Golden Beryl, Oval, Vs

9 x 7 mm (calibrated)

$ 81.58

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5.45Ct Orange Brown Imperial Topaz, Cushion, Vvs
Imperial Topaz Product Video (346569)

5.45Ct Orange Brown Imperial Topaz, Cushion, Vvs

13.2 x 8.1 mm

$ 3,662.40

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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

Web site is very simple to navigate Selection is terrific

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 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 -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate
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