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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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1.00Ct Raspberry Red Tone Spinel, Oval, Vs

1.00Ct Raspberry Red Tone Spinel, Oval, Vs

7 x 5 mm (calibrated)

$ 128.70

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0.12Ct Black Diamond, Round, Opaque

0.12Ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 49.49

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2.89Ctw Medium Yellow Golden Beryl, Oval, Vvs-Vs

2.89Ctw Medium Yellow Golden Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 83.93

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3.21Ctw Multicolor Andalusite, Round, Vs-Si

3.21Ctw Multicolor Andalusite, Round, Vs-Si

4 mm (calibrated)

$ 190.68

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1.42Ct Salmon Pink Morganite, Pear Shape, Vvs-Vs

1.42Ct Salmon Pink Morganite, Pear Shape, Vvs-Vs

10.4 x 6.3 mm

$ 131.21

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4.86Ct Warm White Topaz, Oval, Vs

4.86Ct Warm White Topaz, Oval, Vs

11 x 9 mm (calibrated)

$ 29.16

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0.56Ct Dark Pink Spinel, Emerald Cut, Vs-Si
Spinel Product Video (749004)

0.56Ct Dark Pink Spinel, Emerald Cut, Vs-Si

6.5 x 3.7 mm

$ 140.00

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2.34Ctw Multicolor Andalusite, Round, Vs-Si

2.34Ctw Multicolor Andalusite, Round, Vs-Si

4 mm (calibrated)

$ 139.00

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1.16Ct Light Purple Spinel, Cushion, Vs

1.16Ct Light Purple Spinel, Cushion, Vs

6 x 6 mm (calibrated)

$ 91.31

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2.74Ct Light Coral Pink Morganite, Marquise, Translucent

2.74Ct Light Coral Pink Morganite, Marquise, Translucent

13.8 x 6.9 mm

$ 36.17

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1.17Ct Tuscany Yellow Beryl, Round, Vvs-Vs

1.17Ct Tuscany Yellow Beryl, Round, Vvs-Vs

7 mm (calibrated)

$ 28.08

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9.59Ct Medium Pink Morganite, Oval, Translucent

9.59Ct Medium Pink Morganite, Oval, Translucent

14.7 x 11.1 mm

$ 126.59

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0.67Ct Deep Purple Spinel, Cushion, Vvs-Vs

0.67Ct Deep Purple Spinel, Cushion, Vvs-Vs

5 x 5 mm (calibrated)

$ 56.28

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0.21Ctw H Diamond, Round, Vvs-Vs
Diamond Product Video (567453)

0.21Ctw H Diamond, Round, Vvs-Vs

3 mm (calibrated)

$ 452.32

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4.53Ct Coral Pink Morganite, Trillion, Translucent

4.53Ct Coral Pink Morganite, Trillion, Translucent

11.5 x 11 mm

$ 59.80

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0.06Ctw D Diamond, Round, Vvs

0.06Ctw D Diamond, Round, Vvs

2 mm (calibrated)

$ 165.00

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3.87Ctw White Topaz, Square, Vvs-Vs

3.87Ctw White Topaz, Square, Vvs-Vs

4.2 x 4.2 mm

$ 37.54

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2.90Ctw Multicolor Andalusite, Oval, Vs
Andalusite Product Video (390964)

2.90Ctw Multicolor Andalusite, Oval, Vs

6 x 4 mm (calibrated)

$ 187.34

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0.20Ct Black Diamond, Round, Opaque

0.20Ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 114.64

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5.37Ct Light Coral Pink Morganite, Trillion, Transparent

5.37Ct Light Coral Pink Morganite, Trillion, Transparent

13 x 13 mm (calibrated)

$ 70.88

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1.23Ct Mustard Yellow Beryl, Oval, Vvs-Vs

1.23Ct Mustard Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 32.47

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0.85Ct Light Golden Morganite, Pear Shape, Vs

0.85Ct Light Golden Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 44.88

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25.90Ctw Black Spinel, Baguette, Opaque
Spinel Product Video (372541)

25.90Ctw Black Spinel, Baguette, Opaque

17.6 x 8.2 mm

$ 245.47

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2.50Ct Light Yellow Golden Beryl, Oval, Vvs-Vs

2.50Ct Light Yellow Golden Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 82.50

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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 -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

It was fine . Wish there had been more round stones to select from

Posted By Emm in January, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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