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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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0.33ct Pink Morganite, Round, VS

0.33ct Pink Morganite, Round, VS

5 mm (calibrated)

$ 14.79

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1.20ct Brown Rutile Topaz, Marquise, Transparent

1.20ct Brown Rutile Topaz, Marquise, Transparent

12.4 x 4.5 mm

$ 24.90

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0.50ct Yellow Beryl, Oval, VVS-VS

0.50ct Yellow Beryl, Oval, VVS-VS

6.6 x 4.8 mm

$ 9.55

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3.93ct Pink Morganite, Trillion, Transparent

3.93ct Pink Morganite, Trillion, Transparent

11 x 11 mm (calibrated)

$ 43.06

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2.40ctw Multicolor Andalusite, Oval, VS

2.40ctw Multicolor Andalusite, Oval, VS

6 x 4 mm (calibrated)

$ 128.69

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1.18ct Pink Morganite, Oval, VVS-VS

1.18ct Pink Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 82.27

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0.75ct Yellow Beryl, Trillion, VVS

0.75ct Yellow Beryl, Trillion, VVS

7 x 7 mm (calibrated)

$ 14.94

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0.98ct Purple Spinel, Cushion, VS

0.98ct Purple Spinel, Cushion, VS

6.2 x 5 mm

$ 69.06

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1.43ct Purple Spinel, Cushion, VVS-VS

1.43ct Purple Spinel, Cushion, VVS-VS

7.5 x 5.8 mm

$ 142.43

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2.00ct Red Ruby, Oval, VS-SI
Ruby Product Video (569415)

2.00ct Red Ruby, Oval, VS-SI

9 x 7 mm (calibrated)

$ 12,234.65

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1.16ct Purple Spinel, Cushion, VVS-VS

1.16ct Purple Spinel, Cushion, VVS-VS

7 x 5 mm (calibrated)

$ 91.50

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0.42ct Pink Morganite, Oval, VS

0.42ct Pink Morganite, Oval, VS

5.7 x 4.5 mm

$ 18.82

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1.07ct Purple Spinel, Pear Shape, VS

1.07ct Purple Spinel, Pear Shape, VS

7.3 x 5.5 mm

$ 114.30

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19.33ct Green Cat'S Eye Aquamarine, Oval, Transparent
Cat's Eye Aquamarine Product Video (382724)

19.33ct Green Cat'S Eye Aquamarine, Oval, Transparent

18.1 x 12.2 mm

$ 339.69

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0.21ctw White Diamond, Round, VVS-VS
Diamond Product Video (567456)

0.21ctw White Diamond, Round, VVS-VS

3 mm (calibrated)

$ 375.43

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3.65ct Pink Morganite, Pear Shape, Transparent

3.65ct Pink Morganite, Pear Shape, Transparent

13.7 x 8.1 mm

$ 39.99

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1.05ct Pink Morganite, Round, VVS-VS

1.05ct Pink Morganite, Round, VVS-VS

7 mm (calibrated)

$ 40.79

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0.64ct Yellow Beryl, Oval, VVS-VS

0.64ct Yellow Beryl, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 15.94

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14.65ctw Black Spinel, Round, Opaque

14.65ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.58

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0.75ct Yellow Beryl, Trillion, VVS

0.75ct Yellow Beryl, Trillion, VVS

7 x 7 mm (calibrated)

$ 14.94

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0.92ct Yellow Beryl, Trillion, VVS-VS

0.92ct Yellow Beryl, Trillion, VVS-VS

7 x 7 mm (calibrated)

$ 18.33

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3.08ctw White Topaz, Cushion, VVS-VS

3.08ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 16.87

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2.10ctw Pink Morganite, Round, VVS-VS

2.10ctw Pink Morganite, Round, VVS-VS

7 mm (calibrated)

$ 134.21

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1.55ct Yellow Golden Beryl, Oval, VVS-VS

1.55ct Yellow Golden Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 37.36

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 -> 10 star ratings

I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

Posted By Mattick in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I loved it! Extensive inventory, great prices, I definitely will be buying from here again!

Posted By Lex in April, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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