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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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0.76Ct Light Gold Beryl, Oval, Vs

0.76Ct Light Gold Beryl, Oval, Vs

7.5 x 5.6 mm

$ 18.24

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1.06Ct Black Diamond, Square, Opaque
Diamond Product Video (677849)

1.06Ct Black Diamond, Square, Opaque

5.4 x 5.2 mm

$ 727.54

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0.85Ct Light Yellow Beryl, Oval, Vs

0.85Ct Light Yellow Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 19.55

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1.80Ct White Topaz, Marquise, Vs

1.80Ct White Topaz, Marquise, Vs

12.1 x 5.1 mm

$ 11.88

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1.07Ct Light Purple Spinel, Pear Shape, Vvs-Vs

1.07Ct Light Purple Spinel, Pear Shape, Vvs-Vs

7.6 x 5.2 mm

$ 143.28

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7.89Ct Light Pink Morganite, Pear Shape, Transparent

7.89Ct Light Pink Morganite, Pear Shape, Transparent

16 x 12 mm (calibrated)

$ 104.81

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1.33Ct Reddish Purple Spinel, Cushion, Vvs

1.33Ct Reddish Purple Spinel, Cushion, Vvs

6.8 x 6.3 mm

$ 112.06

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0.79Ct Medium Purple Spinel, Cushion, Vvs-Vs

0.79Ct Medium Purple Spinel, Cushion, Vvs-Vs

5 x 5 mm (calibrated)

$ 66.36

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6.04Ct Clear White Topaz, Cushion, Vs

6.04Ct Clear White Topaz, Cushion, Vs

12 x 10 mm (calibrated)

$ 48.32

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0.04Ct Black Diamond, Round, Opaque

0.04Ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 38.40

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4.27Ctw White Topaz, Cushion, Vs

4.27Ctw White Topaz, Cushion, Vs

4.5 x 4.5 mm

$ 28.19

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22.04Ctw Black Spinel, Oval, Opaque

22.04Ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 87.28

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1.11Ct Light Pink Morganite, Round, Vs

1.11Ct Light Pink Morganite, Round, Vs

7 mm (calibrated)

$ 51.95

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3.25Ct White Topaz, Oval, Vvs-Vs

3.25Ct White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 21.46

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0.42Ct Deep Blood Red Spinel, Pear Shape, Vvs-Vs

0.42Ct Deep Blood Red Spinel, Pear Shape, Vvs-Vs

5.8 x 4.3 mm

$ 42.00

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0.81Ct Light Greenish Yellow Chrysoberyl Cat's Eye, Oval, Translucent

0.81Ct Light Greenish Yellow Chrysoberyl Cat's Eye, Oval, Translucent

5.3 x 4.5 mm

$ 29.16

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2.31Ctw Light Golden-Yellow Beryl, Oval, Vvs-Vs

2.31Ctw Light Golden-Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 55.44

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1.53Ct White Topaz, Marquise, Vs

1.53Ct White Topaz, Marquise, Vs

11.9 x 5 mm

$ 10.10

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1.08Ct Light Golden Morganite, Oval, Vs

1.08Ct Light Golden Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 51.20

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0.59Ct Medium Light-Pink Spinel, Cushion, Vvs-Vs

0.59Ct Medium Light-Pink Spinel, Cushion, Vvs-Vs

4.8 x 4.2 mm

$ 49.56

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15.94Ctw Black Spinel, Round, Opaque

15.94Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 63.12

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2.96Ctw Light Gold Golden Beryl, Oval, Vvs-Vs

2.96Ctw Light Gold Golden Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 78.14

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5.50Ct White Topaz, Oval, Vvs-Vs
Topaz Product Video (751900)

5.50Ct White Topaz, Oval, Vvs-Vs

12 x 10 mm (calibrated)

$ 44.00

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7.49Ctw Black Spinel, Round, Opaque

7.49Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 29.66

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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

Love how easy the site is to use. Really love that the pictures are of actual product.

Posted By LeAnn in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the product and the details about each of them.

Posted By Love It! in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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