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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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0.68Ct Rose Pink Spinel, Cushion, Vs

0.68Ct Rose Pink Spinel, Cushion, Vs

5.4 x 5.1 mm

$ 29.29

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4.47Ct Rose Pink Morganite, Pear Shape, Transparent

4.47Ct Rose Pink Morganite, Pear Shape, Transparent

14 x 9 mm (calibrated)

$ 61.90

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0.62Ct Hot Pink Spinel, Cushion, Vs

0.62Ct Hot Pink Spinel, Cushion, Vs

5 x 4.3 mm

$ 52.08

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6.39Ctw White Topaz, Oval, Vvs-Vs

6.39Ctw White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 42.18

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4.49Ctw Clear White Topaz, Cushion, Vvs-Vs

4.49Ctw Clear White Topaz, Cushion, Vvs-Vs

4.5 x 4.5 mm

$ 29.64

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1.23Ct Light Yellow Beryl, Round, Vvs-Vs

1.23Ct Light Yellow Beryl, Round, Vvs-Vs

7 mm (calibrated)

$ 32.47

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1.60Ct Medium Purple Spinel, Cushion, Vvs-Vs

1.60Ct Medium Purple Spinel, Cushion, Vvs-Vs

7.2 x 6.5 mm

$ 121.66

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1.10Ct Deep Sangria Spinel, Cushion, Vs
Spinel Product Video (720157)

1.10Ct Deep Sangria Spinel, Cushion, Vs

6 x 5.7 mm

$ 198.00

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1.53Ct Very Light Purple Spinel, Cushion, Vs

1.53Ct Very Light Purple Spinel, Cushion, Vs

6.7 x 6.1 mm

$ 132.29

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1.51Ct Purple-Pink Spinel, Cushion, Vvs

1.51Ct Purple-Pink Spinel, Cushion, Vvs

7 x 6 mm

$ 101.78

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12.72Ctw Black Spinel, Round, Opaque

12.72Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 50.38

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2.35Ct Light Golden-Yellow Beryl, Round, Vvs

2.35Ct Light Golden-Yellow Beryl, Round, Vvs

9 mm (calibrated)

$ 62.04

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1.04Ct Light Purple Spinel, Oval, Vvs-Vs

1.04Ct Light Purple Spinel, Oval, Vvs-Vs

6.6 x 5.7 mm

$ 144.14

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0.12Ct Black Diamond, Square, Opaque

0.12Ct Black Diamond, Square, Opaque

2.7 x 2.6 mm

$ 60.00

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0.20Ctw I Diamond, Round, Vvs-Vs
Diamond Product Video (565099)

0.20Ctw I Diamond, Round, Vvs-Vs

2.9 mm (calibrated)

$ 437.80

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11.70Ctw Warm White Topaz, Oval, Vvs-Vs

11.70Ctw Warm White Topaz, Oval, Vvs-Vs

12 x 10 mm (calibrated)

$ 93.60

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0.77Ct Light Earthy Yellow Beryl, Pear Shape, Vvs-Vs

0.77Ct Light Earthy Yellow Beryl, Pear Shape, Vvs-Vs

7.8 x 5.3 mm

$ 18.48

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6.17Ct Light Coral Pink Morganite, Oval, Translucent

6.17Ct Light Coral Pink Morganite, Oval, Translucent

12 x 10 mm (calibrated)

$ 81.44

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0.91Ct Dark Purple Spinel, Oval, Vvs

0.91Ct Dark Purple Spinel, Oval, Vvs

6.2 x 4.4 mm

$ 91.00

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1.14Ct Medium-Dark Purple Sapphire, Cushion, Vs
Sapphire Product Video (448529)

1.14Ct Medium-Dark Purple Sapphire, Cushion, Vs

7 x 5 mm (calibrated)

$ 659.38

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6.59Ct Clear White Topaz, Cushion, Vs

6.59Ct Clear White Topaz, Cushion, Vs

12 x 10 mm (calibrated)

$ 52.72

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0.31Ct Raspberry Red Spinel, Baguette, Vvs-Vs

0.31Ct Raspberry Red Spinel, Baguette, Vvs-Vs

3.6 x 3.3 mm

$ 31.00

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1.77Ctw Light Golden Morganite, Pear Shape, Vs

1.77Ctw Light Golden Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 116.82

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3.54Ctw Multicolor Andalusite, Round, Vs

3.54Ctw Multicolor Andalusite, Round, Vs

3 mm (calibrated)

$ 187.33

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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

Very neat and to the point

Posted By Botha in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Web site is very simple to navigate Selection is terrific

Posted By ToRa.62 in April, 2026
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

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

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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