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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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3.45Ctw Champagne Diamond, Square, Vs-Si
Diamond Product Video (460460)

3.45Ctw Champagne Diamond, Square, Vs-Si

6.8 x 6.6 mm

$ 9,563.40

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1.69Ct Very Light Pink Morganite, Oval, Vs

1.69Ct Very Light Pink Morganite, Oval, Vs

9 x 7 mm (calibrated)

$ 141.96

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0.55Ctw Light Yellow Chrysoberyl Cat's Eye, Oval, Translucent

0.55Ctw Light Yellow Chrysoberyl Cat's Eye, Oval, Translucent

4.6 x 2.9 mm

$ 19.80

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25.34Ctw Black With Gold Sheen Spinel, Baguette, Opaque
Spinel Product Video (372542)

25.34Ctw Black With Gold Sheen Spinel, Baguette, Opaque

17.6 x 8.2 mm

$ 240.16

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1.27Ct Grape Purple Spinel, Pear Shape, Vvs-Vs
Spinel Product Video (349316)

1.27Ct Grape Purple Spinel, Pear Shape, Vvs-Vs

8.6 x 5.6 mm

$ 104.78

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12.97Ctw Black Spinel, Heart, Opaque

12.97Ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 85.61

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1.54Ct Champagne Diamond, Round, Si
Diamond Product Video (378641)

1.54Ct Champagne Diamond, Round, Si

7 mm (calibrated)

$ 5,285.28

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0.76Ct Flamingo Pink Morganite, Pear Shape, Vs

0.76Ct Flamingo Pink Morganite, Pear Shape, Vs

9.8 x 4.7 mm

$ 80.26

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0.22Ct L Diamond, Round, Vvs

0.22Ct L Diamond, Round, Vvs

3.8 mm

$ 445.02

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0.07Ctw D Diamond, Round, Vvs

0.07Ctw D Diamond, Round, Vvs

2 mm (calibrated)

$ 192.50

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 12.37

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1.72Ct Medium Yellow Golden Beryl, Oval, Vs

1.72Ct Medium Yellow Golden Beryl, Oval, Vs

9 x 7 mm (calibrated)

$ 49.94

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1.07Ct Light Golden Morganite, Oval, Vvs-Vs

1.07Ct Light Golden Morganite, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 77.69

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0.18Ctw J Diamond, Round, Vvs-Vs

0.18Ctw J Diamond, Round, Vvs-Vs

3 mm (calibrated)

$ 387.70

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3.93Ct Coral Pink Morganite, Trillion, Transparent

3.93Ct Coral Pink Morganite, Trillion, Transparent

11 x 11 mm (calibrated)

$ 51.88

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0.48Ct Light Pink Morganite, Pear Shape, Vvs

0.48Ct Light Pink Morganite, Pear Shape, Vvs

7 x 4.2 mm

$ 34.85

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3.37Ctw Multicolor Andalusite, Round, Vs
Andalusite Product Video (382191)

3.37Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 178.51

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0.70Ct Light Golden Morganite, Pear Shape, Vs

0.70Ct Light Golden Morganite, Pear Shape, Vs

7.3 x 5.8 mm

$ 36.96

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1.09Ct Light Golden-Yellow Beryl, Round, Vvs-Vs

1.09Ct Light Golden-Yellow Beryl, Round, Vvs-Vs

7 mm (calibrated)

$ 28.78

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6.03Ct Clear White Topaz, Cushion, Vs

6.03Ct Clear White Topaz, Cushion, Vs

12 x 10 mm (calibrated)

$ 48.24

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3.45Ctw Multicolor Andalusite, Round, Vs

3.45Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 182.76

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0.94Ct Salmon Pink Morganite, Pear Shape, Vvs

0.94Ct Salmon Pink Morganite, Pear Shape, Vvs

8 x 6 mm (calibrated)

$ 47.00

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1.84Ctw Light Yellow Beryl, Oval, Vvs-Vs

1.84Ctw Light Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 44.16

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1.17Ct Grape Purple Spinel, Cushion, Vs

1.17Ct Grape Purple Spinel, Cushion, Vs

6.4 x 5.6 mm

$ 98.28

View Details
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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

Very good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

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

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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