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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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2.68Ctw Dijon Yellow Golden Beryl, Oval, Vvs-Vs

2.68Ctw Dijon Yellow Golden Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 77.83

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0.97Ct Light Golden-Yellow Beryl, Oval, Vvs

0.97Ct Light Golden-Yellow Beryl, Oval, Vvs

8 x 6 mm (calibrated)

$ 23.28

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0.96Ct Medium Dark-Purple Spinel, Cushion, Vs

0.96Ct Medium Dark-Purple Spinel, Cushion, Vs

6.1 x 5.6 mm

$ 81.50

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1.37Ct Light Reddish Purple Spinel, Cushion, Vvs

1.37Ct Light Reddish Purple Spinel, Cushion, Vvs

6.4 x 6.2 mm

$ 94.69

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1.44Ct Tuscany Yellow Beryl, Round, Vvs

1.44Ct Tuscany Yellow Beryl, Round, Vvs

8 mm (calibrated)

$ 34.56

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1.17Ct Medium Yellow Beryl, Trillion, Vvs

1.17Ct Medium Yellow Beryl, Trillion, Vvs

8 x 8 mm (calibrated)

$ 28.08

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0.05Ct Black Diamond, Round, Opaque

0.05Ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 48.00

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3.77Ct Light Pink Morganite, Pear Shape, Transparent

3.77Ct Light Pink Morganite, Pear Shape, Transparent

12 x 9 mm

$ 49.76

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1.42Ctw Multicolor Andalusite, Pear Shape, Vs

1.42Ctw Multicolor Andalusite, Pear Shape, Vs

5 x 3 mm (calibrated)

$ 91.39

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0.95Ct Very Light Pink Morganite, Round, Vs

0.95Ct Very Light Pink Morganite, Round, Vs

6.5 mm (calibrated)

$ 44.46

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8.36Ctw Clear White Topaz, Square, Vs

8.36Ctw Clear White Topaz, Square, Vs

5 x 5 mm (calibrated)

$ 77.24

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3.98Ctw White Topaz, Square, Vvs-Vs

3.98Ctw White Topaz, Square, Vvs-Vs

4 x 4 mm (calibrated)

$ 36.78

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2.62Ct Coral Pink Morganite, Pear Shape, Translucent

2.62Ct Coral Pink Morganite, Pear Shape, Translucent

13.1 x 9.9 mm

$ 30.23

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14.86Ctw Black Spinel, Round, Opaque

14.86Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 58.85

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2.33Ct Dark Violet Sapphire, Oval, Vs
Sapphire Product Video (746898)

2.33Ct Dark Violet Sapphire, Oval, Vs

9.5 x 7.4 mm

$ 932.00

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0.14Ct Medium Pink Color-Change Sapphire, Emerald Cut, Vs

0.14Ct Medium Pink Color-Change Sapphire, Emerald Cut, Vs

3.1 x 2.4 mm

$ 14.00

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1.51Ct Deep Purple Spinel, Cushion, Vvs

1.51Ct Deep Purple Spinel, Cushion, Vvs

7.5 x 6 mm

$ 312.00

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1.00Ct Berry Purple Spinel, Cushion, Vs

1.00Ct Berry Purple Spinel, Cushion, Vs

6.1 x 5.2 mm

$ 35.90

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0.29Ct Black Diamond, Square, Opaque

0.29Ct Black Diamond, Square, Opaque

3.2 x 3.2 mm

$ 174.00

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0.64Ct Medium Purple Spinel, Round, Vs

0.64Ct Medium Purple Spinel, Round, Vs

5 mm (calibrated)

$ 33.14

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0.58Ct Dark Reddish Purple Spinel, Cushion, Vvs

0.58Ct Dark Reddish Purple Spinel, Cushion, Vvs

5.5 x 3.9 mm

$ 48.72

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0.08Ctw Black Diamond, Round, Opaque

0.08Ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 76.80

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0.96Ct Medium Yellow Beryl, Trillion, Vvs

0.96Ct Medium Yellow Beryl, Trillion, Vvs

7.9 x 7.5 mm

$ 23.04

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1.45Ct Very Light Dijon Yellow Beryl, Trillion, Vvs

1.45Ct Very Light Dijon Yellow Beryl, Trillion, Vvs

8 x 8 mm (calibrated)

$ 41.76

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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

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and functional

Posted By Dessa in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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