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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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1.22Ct Light Yellow Beryl, Oval, Vvs-Vs

1.22Ct Light Yellow Beryl, Oval, Vvs-Vs

8.8 x 6.5 mm

$ 29.28

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1.38Ct Electric Purple Sapphire, Cushion, Vs
Sapphire Product Video (448505)

1.38Ct Electric Purple Sapphire, Cushion, Vs

7.5 x 5.4 mm

$ 878.02

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9.00Ct Very Light Rose Pink Morganite, Round, Transparent

9.00Ct Very Light Rose Pink Morganite, Round, Transparent

14 mm (calibrated)

$ 118.80

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1.01Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

1.01Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

8.6 x 5.3 mm

$ 133.32

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2.37Ct Very Light Dijon Yellow Beryl, Round, Vvs

2.37Ct Very Light Dijon Yellow Beryl, Round, Vvs

9 mm (calibrated)

$ 62.57

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1.10Ct Raspberry Red Purple Spinel, Oval, Vs

1.10Ct Raspberry Red Purple Spinel, Oval, Vs

6.7 x 5.4 mm

$ 135.41

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14.77Ctw Black Spinel, Round, Opaque

14.77Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 55.38

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1.42Ct Light Violet Spinel, Cushion, Vvs

1.42Ct Light Violet Spinel, Cushion, Vvs

6.5 x 6.4 mm

$ 95.70

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4.83Ct Clear White Topaz, Round, Vvs-Vs

4.83Ct Clear White Topaz, Round, Vvs-Vs

10 mm (calibrated)

$ 22.40

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1.36Ct Light Purple Spinel, Oval, Vs

1.36Ct Light Purple Spinel, Oval, Vs

6.9 x 6 mm

$ 188.50

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5.53Ct White Topaz, Oval, Vvs-Vs

5.53Ct White Topaz, Oval, Vvs-Vs

12 x 10 mm (calibrated)

$ 44.24

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1.53Ct White Topaz, Marquise, Vs

1.53Ct White Topaz, Marquise, Vs

12 x 5 mm

$ 10.10

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1.46Ct Grey Pinkish Purple Spinel, Cushion, Vvs

1.46Ct Grey Pinkish Purple Spinel, Cushion, Vvs

6.8 x 6.3 mm

$ 120.26

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1.84Ct Light Yellow Beryl, Cushion, Vs

1.84Ct Light Yellow Beryl, Cushion, Vs

9 x 7 mm (calibrated)

$ 48.58

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1.20Ct Very Light Pink Morganite, Round, Vs

1.20Ct Very Light Pink Morganite, Round, Vs

7 mm (calibrated)

$ 56.16

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0.04Ct Black Diamond, Round, Opaque

0.04Ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 14.00

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9.29Ct Light Coral Pink Morganite, Oval, Transparent

9.29Ct Light Coral Pink Morganite, Oval, Transparent

16 x 12 mm (calibrated)

$ 111.48

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0.06Ct Black Diamond, Square, Opaque

0.06Ct Black Diamond, Square, Opaque

1.9 x 1.9 mm

$ 36.00

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0.34Ct Light Pink Morganite, Oval, Vs

0.34Ct Light Pink Morganite, Oval, Vs

5.5 x 4.2 mm

$ 18.36

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0.79Ct Deep Lavender Spinel, Cushion, Vvs-Vs

0.79Ct Deep Lavender Spinel, Cushion, Vvs-Vs

6.1 x 4.8 mm

$ 34.03

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3.51Ctw Multicolor Andalusite, Round, Vs

3.51Ctw Multicolor Andalusite, Round, Vs

3.1 mm

$ 185.94

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1.08Ct Reddish Purple Spinel, Cushion, Vs

1.08Ct Reddish Purple Spinel, Cushion, Vs

5.9 x 5.2 mm

$ 155.52

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0.44Ct Very Light Pink Morganite, Round, Vs

0.44Ct Very Light Pink Morganite, Round, Vs

5.3 mm

$ 22.00

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1.17Ct Light Yellow Beryl, Oval, Vvs

1.17Ct Light Yellow Beryl, Oval, Vvs

8 x 6 mm (calibrated)

$ 28.08

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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 love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience was done with ease

Posted By Barb 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 -> 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

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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