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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
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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
Turquoise Natural Untreated Gemstones
Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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7.35Ctw White Topaz, Square, Vvs-Vs
Topaz Product Video (341388)

7.35Ctw White Topaz, Square, Vvs-Vs

5 x 5 mm (calibrated)

$ 70.92

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8.68Ctw Black Spinel, Round, Opaque

8.68Ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 40.10

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0.10Ct Black Diamond, Square, Opaque
Diamond Product Video (677913)

0.10Ct Black Diamond, Square, Opaque

2.3 x 2.2 mm

$ 50.86

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1.44Ct Light Pink Morganite, Round, Vvs-Vs

1.44Ct Light Pink Morganite, Round, Vvs-Vs

7.5 mm (calibrated)

$ 133.06

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2.07Ctw Multicolor Andalusite, Oval, Vs-Si

2.07Ctw Multicolor Andalusite, Oval, Vs-Si

6 x 4 mm (calibrated)

$ 102.47

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0.70Ct Medium Purple Spinel, Emerald Cut, Vs

0.70Ct Medium Purple Spinel, Emerald Cut, Vs

6.2 x 4.5 mm

$ 30.16

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1.31Ct Intense Purple Sapphire, Cushion, Vs
Sapphire Product Video (448530)

1.31Ct Intense Purple Sapphire, Cushion, Vs

6.8 x 5.7 mm

$ 833.47

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2.77Ctw Clear White Topaz, Cushion, Vvs-Vs

2.77Ctw Clear White Topaz, Cushion, Vvs-Vs

4.5 x 4.5 mm

$ 18.29

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1.40Ct Plum Purple Spinel, Cushion, Vvs

1.40Ct Plum Purple Spinel, Cushion, Vvs

6.8 x 6.6 mm

$ 168.00

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0.89Ct Light Golden-Yellow Beryl, Oval, Vs

0.89Ct Light Golden-Yellow Beryl, Oval, Vs

7.9 x 5.7 mm

$ 20.47

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13.35Ct Black Spinel, Baguette, Opaque

13.35Ct Black Spinel, Baguette, Opaque

20.1 x 10.1 mm

$ 52.87

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5.58Ct Flamingo Pink Morganite, Oval, Transparent

5.58Ct Flamingo Pink Morganite, Oval, Transparent

14 x 10 mm (calibrated)

$ 27.90

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0.92Ct Medium Purple Spinel, Cushion, Vs

0.92Ct Medium Purple Spinel, Cushion, Vs

6.3 x 5.3 mm

$ 165.60

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0.85Ct Honey Yellow Beryl, Trillion, Vvs

0.85Ct Honey Yellow Beryl, Trillion, Vvs

7 x 7 mm (calibrated)

$ 20.40

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1.55Ct Very Light Pink Morganite, Round, Vvs-Vs

1.55Ct Very Light Pink Morganite, Round, Vvs-Vs

7 mm (calibrated)

$ 60.45

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0.36Ct Very Light Pink Morganite, Round, Vs

0.36Ct Very Light Pink Morganite, Round, Vs

5.5 mm (calibrated)

$ 18.00

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 28.80

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3.67Ct Light Coral Pink Morganite, Round, Transparent

3.67Ct Light Coral Pink Morganite, Round, Transparent

9.5 mm (calibrated)

$ 50.82

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4.63Ctw Clear White Topaz, Cushion, Vvs-Vs

4.63Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 30.56

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1.84Ctw Light Golden-Yellow Golden Beryl, Oval, Vvs-Vs

1.84Ctw Light Golden-Yellow Golden Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 60.72

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2.22Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

2.22Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 53.28

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0.02Ct Black Diamond, Round, Opaque

0.02Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 16.00

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13.93Ctw Black Spinel, Heart, Opaque

13.93Ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 83.58

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4.40Ct Light Pink Morganite, Round, Transparent

4.40Ct Light Pink Morganite, Round, Transparent

11 mm (calibrated)

$ 57.50

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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

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

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All good

Posted By DouscheGift in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

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