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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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0.65Ct Salmon Pink Morganite, Pear Shape, Vs

0.65Ct Salmon Pink Morganite, Pear Shape, Vs

7.4 x 5.2 mm

$ 35.10

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14.43Ct Light Blue Cat's Eye Aquamarine, Oval, Transparent
Cat's Eye Aquamarine Product Video (382721)

14.43Ct Light Blue Cat's Eye Aquamarine, Oval, Transparent

17.5 x 10.5 mm

$ 305.53

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5.64Ct Light Pink Morganite, Pear Shape, Transparent

5.64Ct Light Pink Morganite, Pear Shape, Transparent

15 x 10 mm (calibrated)

$ 28.20

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6.37Ctw White Topaz, Oval, Vvs-Vs

6.37Ctw White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 42.05

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0.55Ct Black Diamond, Round, Opaque
Diamond Product Video (668694)

0.55Ct Black Diamond, Round, Opaque

4.8 mm

$ 528.00

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2.19Ct Tuscany Yellow Golden Beryl, Oval, Vvs-Vs

2.19Ct Tuscany Yellow Golden Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 72.28

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0.59Ct Light Yellow Beryl, Oval, Vvs-Vs

0.59Ct Light Yellow Beryl, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 13.57

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27.03Ctw Black Spinel, Fancy, Opaque

27.03Ctw Black Spinel, Fancy, Opaque

18.2 x 12 mm

$ 107.04

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1.17Ct Light Gold Beryl, Oval, Vvs

1.17Ct Light Gold Beryl, Oval, Vvs

9 x 7 mm (calibrated)

$ 28.08

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0.42Ct Very Light Pink Morganite, Round, Vs-Si

0.42Ct Very Light Pink Morganite, Round, Vs-Si

5 mm (calibrated)

$ 21.00

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1.25Ct Pinkish Grape Sapphire, Cushion, Vvs-Vs
Sapphire Product Video (670121)

1.25Ct Pinkish Grape Sapphire, Cushion, Vvs-Vs

7 x 5.3 mm

$ 723.00

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1.08Ct Deep Lavender Spinel, Cushion, Vs

1.08Ct Deep Lavender Spinel, Cushion, Vs

6.3 x 5.8 mm

$ 78.47

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0.23Ctw Black Diamond, Round, Opaque
Diamond Product Video (682708)

0.23Ctw Black Diamond, Round, Opaque

3 mm (calibrated)

$ 109.85

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3.79Ctw Multicolor Andalusite, Round, Vs

3.79Ctw Multicolor Andalusite, Round, Vs

3.7 mm

$ 200.56

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5.97Ct Light Pink Morganite, Round, Transparent

5.97Ct Light Pink Morganite, Round, Transparent

13 mm (calibrated)

$ 78.80

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1.54Ct Light Pink Morganite, Round, Vvs-Vs

1.54Ct Light Pink Morganite, Round, Vvs-Vs

7.5 mm (calibrated)

$ 142.30

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14.22Ctw Black Spinel, Heart, Opaque

14.22Ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 93.85

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5.01Ct Light Rose Pink Morganite, Trillion, Transparent

5.01Ct Light Rose Pink Morganite, Trillion, Transparent

12.8 x 11.9 mm

$ 66.13

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0.67Ct Raspberry Red Spinel, Oval, Vs
Spinel Product Video (749002)

0.67Ct Raspberry Red Spinel, Oval, Vs

5.6 x 4.9 mm

$ 167.50

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1.21Ct Medium-Dark Purple Sapphire, Cushion, Vs
Sapphire Product Video (447677)

1.21Ct Medium-Dark Purple Sapphire, Cushion, Vs

6.6 x 5.3 mm

$ 768.79

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4.51Ct Medium Pink Morganite, Oval, Transparent

4.51Ct Medium Pink Morganite, Oval, Transparent

13 x 9 mm (calibrated)

$ 59.53

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6.30Ct Medium Pink Morganite, Trillion, Translucent

6.30Ct Medium Pink Morganite, Trillion, Translucent

13 x 13 mm (calibrated)

$ 83.16

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0.88Ct Pinkish Purple Spinel, Cushion, Vs

0.88Ct Pinkish Purple Spinel, Cushion, Vs

6 x 5 mm

$ 37.91

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0.89Ct Light Golden Beryl, Oval, Vvs-Vs

0.89Ct Light Golden Beryl, Oval, Vvs-Vs

7.8 x 5.7 mm

$ 26.70

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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 -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
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

No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

Posted By Orphanboy in December, 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

Excellent options

Posted By CJ in February, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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