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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
Purple Natural Untreated Gemstones
Red Natural Untreated Gemstones
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Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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9.91ctw Black Spinel, Round, Opaque

9.91ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 38.00

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0.68ct Pink Spinel, Cushion, VS

0.68ct Pink Spinel, Cushion, VS

5.4 x 5.1 mm

$ 24.31

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2.18ct Yellow Golden Beryl, Oval, VS

2.18ct Yellow Golden Beryl, Oval, VS

10 x 8 mm (calibrated)

$ 59.71

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2.07ct Yellow Beryl, Round, VVS-VS

2.07ct Yellow Beryl, Round, VVS-VS

9 mm (calibrated)

$ 41.23

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2.48ct Pink Morganite, Pear Shape, VVS-VS

2.48ct Pink Morganite, Pear Shape, VVS-VS

13.1 x 7.1 mm

$ 102.92

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3.44ctw Yellow Golden Beryl, Oval, VVS-VS

3.44ctw Yellow Golden Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 75.38

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8.96ct Gray Star Sapphire, Round, Opaque
Star Sapphire Product Video (470805)

8.96ct Gray Star Sapphire, Round, Opaque

10.5 mm

$ 312.35

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1.84ct Yellow Rutile Topaz, Pear Shape, Transparent

1.84ct Yellow Rutile Topaz, Pear Shape, Transparent

11.8 x 6.1 mm

$ 38.18

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13.10ct Green Cat'S Eye Aquamarine, Oval, Transparent

13.10ct Green Cat'S Eye Aquamarine, Oval, Transparent

15.2 x 13.1 mm

$ 174.40

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1.05ct Yellow Beryl, Trillion, VVS

1.05ct Yellow Beryl, Trillion, VVS

7.9 x 7.6 mm

$ 20.92

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3.41ctw Yellow Golden Beryl, Oval, VVS-VS

3.41ctw Yellow Golden Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 74.72

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4.41ctw White Topaz, Square, VVS-VS

4.41ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 35.51

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0.91ct Pink Morganite, Pear Shape, VVS-VS

0.91ct Pink Morganite, Pear Shape, VVS-VS

9.5 x 5.2 mm

$ 54.84

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0.83ct Pink Morganite, Pear Shape, VVS-VS

0.83ct Pink Morganite, Pear Shape, VVS-VS

7 x 5.4 mm

$ 50.02

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0.85ct Yellow Beryl, Pear Shape, VVS-VS

0.85ct Yellow Beryl, Pear Shape, VVS-VS

9 x 6 mm (calibrated)

$ 18.63

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1.70ct Yellow Beryl, Oval, VVS

1.70ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 33.86

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1.26ct Yellow Beryl, Trillion, VS

1.26ct Yellow Beryl, Trillion, VS

8 x 8 mm (calibrated)

$ 25.10

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0.55ct Yellow Beryl, Oval, VVS-VS

0.55ct Yellow Beryl, Oval, VVS-VS

6.7 x 4.8 mm

$ 13.70

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2.08ct Yellow Golden Beryl, Oval, VVS

2.08ct Yellow Golden Beryl, Oval, VVS

10 x 8 mm (calibrated)

$ 56.97

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1.22ct Yellow Beryl, Oval, VVS-VS

1.22ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 26.73

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1.60ct Yellow Beryl, Round, VVS-VS

1.60ct Yellow Beryl, Round, VVS-VS

8 mm (calibrated)

$ 31.87

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0.87ct Yellow Morganite, Pear Shape, VS

0.87ct Yellow Morganite, Pear Shape, VS

8 x 6 mm (calibrated)

$ 38.13

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1.02ct Purple Spinel, Pear Shape, VVS
Spinel Product Video (400519)

1.02ct Purple Spinel, Pear Shape, VVS

7.6 x 6.1 mm

$ 177.62

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3.35ct Pink Morganite, Pear Shape, Transparent

3.35ct Pink Morganite, Pear Shape, Transparent

13.7 x 7.9 mm

$ 13.90

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 -> 9 star ratings

It was fine . Wish there had been more round stones to select from

Posted By Emm in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 2025
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

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

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