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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
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
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Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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0.82Ct Honey Yellow Beryl, Oval, Vvs-Vs

0.82Ct Honey Yellow Beryl, Oval, Vvs-Vs

7.9 x 5.6 mm

$ 19.68

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0.39Ctw Black Diamond, Square, Opaque
Diamond Product Video (678050)

0.39Ctw Black Diamond, Square, Opaque

2.7 x 2.6 mm

$ 234.00

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13.48Ctw Black Spinel, Round, Opaque

13.48Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 53.38

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0.20Ct L Diamond, Round, Vs

0.20Ct L Diamond, Round, Vs

3.7 mm

$ 404.57

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0.18Ct Light Pink Morganite, Round, Vs

0.18Ct Light Pink Morganite, Round, Vs

4 mm (calibrated)

$ 9.00

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1.01Ct Honey Yellow Beryl, Oval, Vvs

1.01Ct Honey Yellow Beryl, Oval, Vvs

8 x 6 mm (calibrated)

$ 24.24

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27.88Ctw Black Spinel, Baguette, Opaque

27.88Ctw Black Spinel, Baguette, Opaque

20.1 x 9.9 mm

$ 110.40

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0.98Ct Light Golden Morganite, Pear Shape, Vs

0.98Ct Light Golden Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 64.68

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1.21Ct Light Yellow Beryl, Oval, Vvs-Vs

1.21Ct Light Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 31.94

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1.96Ctw Medium Pink Morganite, Oval, Vs

1.96Ctw Medium Pink Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 103.49

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4.28Ctw Warm White Topaz, Square, Vvs-Vs

4.28Ctw Warm White Topaz, Square, Vvs-Vs

4 x 4 mm (calibrated)

$ 41.53

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 12.37

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3.23Ctw Multicolor Andalusite, Round, Vs

3.23Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 170.93

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4.50Ct Salmon Pink Morganite, Oval, Transparent

4.50Ct Salmon Pink Morganite, Oval, Transparent

12 x 9.1 mm

$ 59.40

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2.89Ct Tuscany Yellow Beryl, Oval, Vvs

2.89Ct Tuscany Yellow Beryl, Oval, Vvs

11 x 9 mm (calibrated)

$ 76.30

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8.00Ct Flamingo Pink Morganite, Pear Shape, Translucent

8.00Ct Flamingo Pink Morganite, Pear Shape, Translucent

15 x 10.8 mm

$ 40.00

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0.53Ct Very Light Purple Spinel, Round, Vs

0.53Ct Very Light Purple Spinel, Round, Vs

4.8 mm

$ 33.49

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2.06Ctw Multicolor Andalusite, Oval, Vs

2.06Ctw Multicolor Andalusite, Oval, Vs

5.2 x 4.2 mm

$ 133.08

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9.17Ctw Black Spinel, Round, Opaque

9.17Ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 42.37

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2.54Ct Light Pink Morganite, Round, Transparent

2.54Ct Light Pink Morganite, Round, Transparent

8.5 mm (calibrated)

$ 35.16

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1.12Ct Light Purple Spinel, Cushion, Vs

1.12Ct Light Purple Spinel, Cushion, Vs

6.4 x 5.9 mm

$ 73.97

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0.34Ct Flamingo Pink Morganite, Pear Shape, Si

0.34Ct Flamingo Pink Morganite, Pear Shape, Si

6.5 x 4.4 mm

$ 18.36

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13.73Ctw Black Spinel, Round, Opaque

13.73Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 54.37

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1.09Ct Light Golden Morganite, Oval, Vvs-Vs

1.09Ct Light Golden Morganite, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 71.94

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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

My whole experience is great.

Posted By Ghs in November, 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

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

This is the first time I have used this site. I was dissatisfied with the quality of gems and supplies elsewhere and decided to try GemSelect. They are awesome! I was thrilled to see the variety and the great web performance. There was the ability to search for information as well as gems. Things like the clarity rating system and caret weight of the gems. I have always loved making things and I have just started to make jewelry as a business. However I have never made a ring before and have always wanted to. On GemSelect I was able to find good quality gems to use in my creations. I am so glad the website is so easy to use. Thank you GemSelect.

Posted By PickyShopper in April, 2026
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

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
Source: Bizrate
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