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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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White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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3.72Ct Flamingo Pink Morganite, Pear Shape, Transparent

3.72Ct Flamingo Pink Morganite, Pear Shape, Transparent

13 x 9 mm (calibrated)

$ 44.64

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0.98Ct Medium Yellow Chrysoberyl, Oval, Vvs
Chrysoberyl Product Video (367068)

0.98Ct Medium Yellow Chrysoberyl, Oval, Vvs

7 x 5 mm (calibrated)

$ 136.63

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0.01Ct I Diamond, Round, Vvs-Vs

0.01Ct I Diamond, Round, Vvs-Vs

1.3 mm (calibrated)

$ 15.68

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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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3.03Ctw Clear White Topaz, Cushion, Vvs-Vs

3.03Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 20.00

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3.87Ctw Tuscany Yellow Golden Beryl, Oval, Vvs-Vs

3.87Ctw Tuscany Yellow Golden Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 127.72

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3.01Ct Flamingo Pink Morganite, Trillion, Transparent

3.01Ct Flamingo Pink Morganite, Trillion, Transparent

10 x 10 mm (calibrated)

$ 39.73

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12.08Ctw White Topaz, Oval, Vs

12.08Ctw White Topaz, Oval, Vs

12 x 10 mm (calibrated)

$ 96.64

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1.30Ct Medium Purple Spinel, Cushion, Vs

1.30Ct Medium Purple Spinel, Cushion, Vs

6.4 x 5.9 mm

$ 110.20

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0.86Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

0.86Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

6 x 4.3 mm

$ 215.00

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1.17Ct Dark Purple Spinel, Oval, Vvs

1.17Ct Dark Purple Spinel, Oval, Vvs

7.3 x 5.6 mm

$ 131.71

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3.62Ct White Topaz, Round, Vvs-Vs
Topaz Product Video (557820)

3.62Ct White Topaz, Round, Vvs-Vs

9 mm (calibrated)

$ 38.38

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1.11Ct Deep Red Spinel, Cushion, Vs

1.11Ct Deep Red Spinel, Cushion, Vs

6.6 x 5.3 mm

$ 99.90

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0.62Ct Light Pink Spinel, Cushion, Vvs

0.62Ct Light Pink Spinel, Cushion, Vvs

5.2 x 4 mm

$ 52.08

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1.22Ct Light Pink Morganite, Round, Vvs-Vs

1.22Ct Light Pink Morganite, Round, Vvs-Vs

7.5 mm (calibrated)

$ 112.73

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1.88Ct Autumn Yellow Beryl, Trillion, Vs

1.88Ct Autumn Yellow Beryl, Trillion, Vs

9 x 9 mm (calibrated)

$ 54.14

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2.90Ctw White Topaz, Cushion, Vvs-Vs

2.90Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 19.14

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2.09Ct Light Gold Beryl, Oval, Vvs

2.09Ct Light Gold Beryl, Oval, Vvs

10 x 8 mm (calibrated)

$ 50.16

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3.06Ctw Light Golden-Yellow Beryl, Oval, Vvs

3.06Ctw Light Golden-Yellow Beryl, Oval, Vvs

9 x 7 mm (calibrated)

$ 73.44

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5.90Ct Clear White Topaz, Cushion, Vvs-Vs

5.90Ct Clear White Topaz, Cushion, Vvs-Vs

12 x 10 mm (calibrated)

$ 47.20

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0.31Ct Very Light Pink Morganite, Round, Vs

0.31Ct Very Light Pink Morganite, Round, Vs

4.8 mm

$ 16.74

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3.93Ctw Medium-Light Yellow Golden Beryl, Oval, Vvs-Vs

3.93Ctw Medium-Light Yellow Golden Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 117.90

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0.27Ctw Black Diamond, Round, Opaque

0.27Ctw Black Diamond, Round, Opaque

3 mm (calibrated)

$ 154.75

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0.99Ct Medium Purple Spinel, Cushion, Vvs

0.99Ct Medium Purple Spinel, Cushion, Vvs

6.1 x 5.3 mm

$ 178.20

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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

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 -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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