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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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0.83ct Red Spinel, Emerald Cut, SI
Spinel Product Video (754467)

0.83ct Red Spinel, Emerald Cut, SI

8.1 x 4.4 mm

$ 172.23

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5.81ct White Topaz, Cushion, VVS-VS

5.81ct White Topaz, Cushion, VVS-VS

12 x 10 mm (calibrated)

$ 38.58

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0.68ct White Topaz, Oval, VVS

0.68ct White Topaz, Oval, VVS

6 x 4 mm (calibrated)

$ 4.74

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2.96ctw White Topaz, Cushion, VVS-VS

2.96ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 16.22

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0.66ct Pink Spinel, Oval, VVS

0.66ct Pink Spinel, Oval, VVS

5.7 x 4.3 mm

$ 54.78

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0.36ct Pink Morganite, Oval, VS

0.36ct Pink Morganite, Oval, VS

6 x 4 mm (calibrated)

$ 16.14

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4.00ctw White Topaz, Square, VVS-VS

4.00ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 32.21

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3.47ctw White Topaz, Square, VVS-VS

3.47ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 26.61

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5.07ct Pink Morganite, Oval, Transparent

5.07ct Pink Morganite, Oval, Transparent

13 x 9 mm (calibrated)

$ 55.54

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1.19ct Pink Morganite, Round, VS

1.19ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 91.27

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6.13ct White Topaz, Cushion, VS

6.13ct White Topaz, Cushion, VS

11.2 x 10.1 mm

$ 40.70

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0.23ct Pink Morganite, Round, VVS-VS

0.23ct Pink Morganite, Round, VVS-VS

4.5 mm (calibrated)

$ 8.59

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0.70ct Pink Morganite, Pear Shape, VVS-VS

0.70ct Pink Morganite, Pear Shape, VVS-VS

8 x 5 mm (calibrated)

$ 42.18

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7.45ctw White Topaz, Square, VVS-VS

7.45ctw White Topaz, Square, VVS-VS

5 x 5 mm (calibrated)

$ 60.00

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1.52ct Pink Morganite, Round, VS

1.52ct Pink Morganite, Round, VS

7.5 mm (calibrated)

$ 83.27

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2.81ctw White Topaz, Cushion, VVS-VS

2.81ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 12.31

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1.05ct Pink Morganite, Oval, VVS-VS

1.05ct Pink Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 69.02

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3.76ctw Multicolor Andalusite, Round, VS

3.76ctw Multicolor Andalusite, Round, VS

3.5 mm (calibrated)

$ 165.32

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7.01ctw Black Spinel, Round, Opaque

7.01ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 26.88

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1.16ct Purple Spinel, Oval, VS

1.16ct Purple Spinel, Oval, VS

6.5 x 5.3 mm

$ 133.45

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0.66ct Purple Spinel, Cushion, VVS-VS

0.66ct Purple Spinel, Cushion, VVS-VS

5.4 x 4.8 mm

$ 46.02

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1.93ct Yellow Beryl, Round, VS

1.93ct Yellow Beryl, Round, VS

8.5 mm (calibrated)

$ 46.13

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1.14ct Pink Morganite, Oval, VVS-VS
Morganite Product Video (618802)

1.14ct Pink Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 438.41

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2.89ctw Yellow Golden Beryl, Oval, VVS-VS

2.89ctw Yellow Golden Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 69.66

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

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Good prices

Posted By TRM in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 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

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 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
→ View All GemSelect Reviews on Bizrate
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