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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: 8-9
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Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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0.87Ct Light Pink Morganite, Pear Shape, Vvs-Vs

0.87Ct Light Pink Morganite, Pear Shape, Vvs-Vs

10.1 x 4.8 mm

$ 63.17

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0.15Ct L Diamond, Round, Vs

0.15Ct L Diamond, Round, Vs

3.5 mm (calibrated)

$ 303.42

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1.95Ct Very Light Golden-Brown Rutile Topaz, Pear Shape, Transparent

1.95Ct Very Light Golden-Brown Rutile Topaz, Pear Shape, Transparent

9.5 x 9.4 mm

$ 48.75

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0.20Ctw K Diamond, Round, Vvs-Vs
Diamond Product Video (567406)

0.20Ctw K Diamond, Round, Vvs-Vs

3 mm (calibrated)

$ 430.76

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0.69Ct Medium Light-Pink Morganite, Pear Shape, Vs

0.69Ct Medium Light-Pink Morganite, Pear Shape, Vs

7.1 x 5.4 mm

$ 37.26

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2.88Ctw Clear White Topaz, Cushion, Vvs-Vs

2.88Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 19.01

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8.21Ctw White Topaz, Heart, Vvs-Vs

8.21Ctw White Topaz, Heart, Vvs-Vs

10 x 10 mm (calibrated)

$ 82.10

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1.40Ct Warm Yellow Beryl, Round, Vvs-Vs

1.40Ct Warm Yellow Beryl, Round, Vvs-Vs

8 mm (calibrated)

$ 33.60

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1.07Ctw White Topaz, Oval, Vvs

1.07Ctw White Topaz, Oval, Vvs

6.3 x 4.2 mm

$ 8.99

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0.82Ct Medium Light-Yellow Beryl, Trillion, Vs

0.82Ct Medium Light-Yellow Beryl, Trillion, Vs

7 x 7 mm (calibrated)

$ 19.68

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3.33Ctw Multicolor Andalusite, Round, Vs

3.33Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 176.39

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1.28Ct Tuscany Yellow Beryl, Trillion, Vvs-Vs

1.28Ct Tuscany Yellow Beryl, Trillion, Vvs-Vs

8 x 8 mm (calibrated)

$ 36.86

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5.93Ct Flamingo Pink Morganite, Oval, Opaque

5.93Ct Flamingo Pink Morganite, Oval, Opaque

13 x 11 mm (calibrated)

$ 29.65

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8.93Ctw Black Spinel, Round, Opaque

8.93Ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 41.27

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0.73Ct Grey Green Cat's Eye Alexandrite, Oval, Opaque

0.73Ct Grey Green Cat's Eye Alexandrite, Oval, Opaque

5.8 x 3.8 mm

$ 182.50

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4.64Ct Light Peach Rose Morganite, Round, Transparent

4.64Ct Light Peach Rose Morganite, Round, Transparent

11 mm (calibrated)

$ 60.64

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0.92Ct Medium Grey Cat's Eye Alexandrite, Oval, Opaque

0.92Ct Medium Grey Cat's Eye Alexandrite, Oval, Opaque

6 x 4 mm (calibrated)

$ 230.00

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3.70Ctw Multicolor Andalusite, Round, Vs

3.70Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 195.79

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2.04Ctw Dijon Yellow Golden Beryl, Oval, Vvs-Vs

2.04Ctw Dijon Yellow Golden Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 67.32

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3.67Ct Medium Pink Morganite, Oval, Translucent

3.67Ct Medium Pink Morganite, Oval, Translucent

11.5 x 9 mm

$ 48.44

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0.16Ct Very Light Pink Morganite, Round, Vs-Si

0.16Ct Very Light Pink Morganite, Round, Vs-Si

4 mm (calibrated)

$ 8.00

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0.03Ct E Diamond, Round, Vvs

0.03Ct E Diamond, Round, Vvs

2 mm (calibrated)

$ 82.50

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5.66Ct Coral Pink Morganite, Oval, Translucent

5.66Ct Coral Pink Morganite, Oval, Translucent

14 x 10 mm (calibrated)

$ 74.71

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5.25Ct Clear White Topaz, Cushion, Vs

5.25Ct Clear White Topaz, Cushion, Vs

12 x 10 mm (calibrated)

$ 42.00

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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

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 2025
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 -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 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
→ View All GemSelect Reviews on Bizrate
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