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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

Choose Size or Size Range
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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4.47ct White Topaz, Round, VVS-VS
Topaz Product Video (557818)

4.47ct White Topaz, Round, VVS-VS

10 mm (calibrated)

$ 39.33

View Gem
2.32ctw Multicolor Andalusite, Round, VS-SI

2.32ctw Multicolor Andalusite, Round, VS-SI

4 mm (calibrated)

$ 114.38

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0.55ct Purple Spinel, Cushion, VVS-VS

0.55ct Purple Spinel, Cushion, VVS-VS

5.2 x 4.6 mm

$ 45.65

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3.08ct White Topaz, Round, VS

3.08ct White Topaz, Round, VS

9 mm (calibrated)

$ 23.62

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0.31ct Pink Morganite, Round, VS

0.31ct Pink Morganite, Round, VS

5 mm (calibrated)

$ 12.87

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1.63ct Pink Morganite, Round, VVS-VS

1.63ct Pink Morganite, Round, VVS-VS

8 mm (calibrated)

$ 125.01

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1.26ct Green Chrysoberyl, Pear Shape, VVS
Chrysoberyl Product Video (366571)

1.26ct Green Chrysoberyl, Pear Shape, VVS

8.2 x 5.7 mm

$ 122.37

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5.61ct White Topaz, Oval, VVS-VS

5.61ct White Topaz, Oval, VVS-VS

12.1 x 9.2 mm

$ 36.89

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0.94ct Pink Morganite, Pear Shape, VS

0.94ct Pink Morganite, Pear Shape, VS

9 x 5.2 mm

$ 72.09

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0.91ct Purple Spinel, Oval, VVS

0.91ct Purple Spinel, Oval, VVS

7 x 5 mm (calibrated)

$ 73.11

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 10.27

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2.69ct Pink Morganite, Trillion, Transparent

2.69ct Pink Morganite, Trillion, Transparent

10.6 x 9.5 mm

$ 24.56

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0.09ctw Black Diamond, Round, Opaque

0.09ctw Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 40.79

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0.49ct Pink Morganite, Pear Shape, VVS

0.49ct Pink Morganite, Pear Shape, VVS

6.7 x 3.7 mm

$ 29.53

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7.55ctw White Topaz, Emerald Cut, VVS

7.55ctw White Topaz, Emerald Cut, VVS

10 x 8 mm (calibrated)

$ 34.47

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1.30ct Pink Morganite, Pear Shape, VS

1.30ct Pink Morganite, Pear Shape, VS

9.9 x 5.9 mm

$ 99.70

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3.07ctw White Topaz, Cushion, VVS-VS

3.07ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 16.82

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1.95ct Pink Morganite, Oval, VS

1.95ct Pink Morganite, Oval, VS

9 x 7 mm (calibrated)

$ 149.55

View Gem
3.86ctw White Topaz, Square, VVS-VS

3.86ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 31.08

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0.99ct Yellow Morganite, Pear Shape, VS

0.99ct Yellow Morganite, Pear Shape, VS

8 x 6 mm (calibrated)

$ 54.23

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1.14ct Yellow Beryl, Oval, VS

1.14ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 21.76

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0.14ctw Black Diamond, Square, Opaque

0.14ctw Black Diamond, Square, Opaque

2.2 x 2.2 mm

$ 69.72

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2.75ct Pink Morganite, Round, Transparent

2.75ct Pink Morganite, Round, Transparent

9 mm (calibrated)

$ 30.13

View Gem
1.08ct Yellow Morganite, Oval, VS

1.08ct Yellow Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 42.50

View Gem
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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 -> 8 star ratings

Good prices

Posted By TRM in October, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

Posted By Big Ricky in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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