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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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19.65Ctw Black Spinel, Oval, Opaque

19.65Ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 77.82

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2.61Ctw Dijon Yellow Golden Beryl, Oval, Vvs-Vs

2.61Ctw Dijon Yellow Golden Beryl, Oval, Vvs-Vs

9 x 6 mm (calibrated)

$ 75.79

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4.22Ctw Clear White Topaz, Square, Vvs-Vs

4.22Ctw Clear White Topaz, Square, Vvs-Vs

4 x 4 mm (calibrated)

$ 40.94

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0.58Ct Light Pink Morganite, Pear Shape, Vvs-Vs

0.58Ct Light Pink Morganite, Pear Shape, Vvs-Vs

8.3 x 4.6 mm

$ 42.11

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3.91Ctw Warm White Topaz, Square, Vvs-Vs

3.91Ctw Warm White Topaz, Square, Vvs-Vs

4 x 4 mm (calibrated)

$ 37.93

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1.92Ctw Medium-Light Yellow Golden Beryl, Oval, Vs

1.92Ctw Medium-Light Yellow Golden Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 63.36

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0.49Ct White Topaz, Cushion, Vvs-Vs
Topaz Product Video (518954)

0.49Ct White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 2.69

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0.67Ct Medium Golden Beryl, Oval, Vvs-Vs

0.67Ct Medium Golden Beryl, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 15.41

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1.19Ct Very Light Pink Morganite, Round, Transparent

1.19Ct Very Light Pink Morganite, Round, Transparent

7 mm (calibrated)

$ 55.69

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1.61Ct Light Pink Morganite, Round, Vs

1.61Ct Light Pink Morganite, Round, Vs

8 mm (calibrated)

$ 106.26

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8.30Ctw White Topaz, Square, Vs

8.30Ctw White Topaz, Square, Vs

5 x 5 mm (calibrated)

$ 79.46

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1.15Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

1.15Ct Light Golden-Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 27.60

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0.07Ct Black Diamond, Round, Opaque

0.07Ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 40.81

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0.68Ct Warm White Topaz, Oval, Vvs

0.68Ct Warm White Topaz, Oval, Vvs

6 x 4 mm (calibrated)

$ 5.71

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1.32Ct Grape Purple Spinel, Marquise, Vvs-Vs
Spinel Product Video (349481)

1.32Ct Grape Purple Spinel, Marquise, Vvs-Vs

9.7 x 5.6 mm

$ 264.00

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0.93Ct Salmon Pink Morganite, Pear Shape, Vvs
Morganite Product Video (473790)

0.93Ct Salmon Pink Morganite, Pear Shape, Vvs

9.1 x 5.5 mm

$ 67.52

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0.49Ct Very Light Green Alexandrite, Oval, Si
Alexandrite Product Video (735049)

0.49Ct Very Light Green Alexandrite, Oval, Si

5.7 x 4.1 mm

$ 411.60

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2.70Ctw Clear White Topaz, Cushion, Vvs-Vs

2.70Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 17.82

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0.21Ct Very Light Pink Morganite, Round, Vs-Si

0.21Ct Very Light Pink Morganite, Round, Vs-Si

4.2 mm

$ 10.50

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0.78Ct Medium Purple Spinel, Oval, Vvs-Vs

0.78Ct Medium Purple Spinel, Oval, Vvs-Vs

5.8 x 5 mm

$ 87.46

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0.54Ct Medium Pink Morganite, Oval, Vvs-Vs

0.54Ct Medium Pink Morganite, Oval, Vvs-Vs

6.4 x 4.6 mm

$ 57.02

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0.70Ct Golden Beryl, Oval, Vs

0.70Ct Golden Beryl, Oval, Vs

7 x 5 mm (calibrated)

$ 21.00

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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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1.13Ct Mellow Yellow Beryl, Cushion, Vs

1.13Ct Mellow Yellow Beryl, Cushion, Vs

8 x 6 mm (calibrated)

$ 32.54

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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 -> 10 star ratings

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been very happy with my prior purchases and enjoy the website experience.

Posted By Trouble in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection prices are reasonable!

Posted By ToRa62 in April, 2026
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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