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Home › Gemstones › Natural Untreated Gemstones

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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1.95ct Orange Hessonite Garnet, Cushion, VS-SI

1.95ct Orange Hessonite Garnet, Cushion, VS-SI

7 x 7 mm (calibrated)

$ 29.05

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2.18ct Yellow Citrine, Cushion, VVS

2.18ct Yellow Citrine, Cushion, VVS

10 x 8 mm (calibrated)

$ 15.20

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2.63ct Yellow Citrine, Pear Shape, VS

2.63ct Yellow Citrine, Pear Shape, VS

10.6 x 8.1 mm

$ 20.17

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64.19ct White Jade, Fancy, Translucent

64.19ct White Jade, Fancy, Translucent

46.1 x 24.1 mm

$ 40.09

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0.92ct Orange Zircon, Oval, VVS-VS

0.92ct Orange Zircon, Oval, VVS-VS

5.8 x 4.9 mm

$ 22.91

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1.00ct Multicolor Opal, Trillion, Transparent

1.00ct Multicolor Opal, Trillion, Transparent

8 x 8 mm (calibrated)

$ 34.86

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1.93ct Green Tourmaline, Emerald Cut, VVS-VS

1.93ct Green Tourmaline, Emerald Cut, VVS-VS

17 x 3.8 mm

$ 46.52

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9.24ct Green Jadeite, Oval, Translucent

9.24ct Green Jadeite, Oval, Translucent

17.2 x 13.7 mm

$ 30.37

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1.60ct Violet Amethyst, Marquise, VS

1.60ct Violet Amethyst, Marquise, VS

12 x 6 mm

$ 12.27

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0.64ct Yellow Zircon, Oval, VVS

0.64ct Yellow Zircon, Oval, VVS

5.2 x 4.2 mm

$ 9.56

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1.25ct Orange Hessonite Garnet, Cushion, VS-SI

1.25ct Orange Hessonite Garnet, Cushion, VS-SI

7 x 5 mm (calibrated)

$ 22.41

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28.20ct Multicolor Jasper, Oval, Opaque

28.20ct Multicolor Jasper, Oval, Opaque

27 x 20 mm (calibrated)

$ 22.56

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5.20ct Yellow Citrine, Oval, VVS-VS

5.20ct Yellow Citrine, Oval, VVS-VS

14 x 10 mm (calibrated)

$ 31.22

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17.29ct Violet Amethyst, Cushion, VVS

17.29ct Violet Amethyst, Cushion, VVS

20 x 15 mm (calibrated)

$ 120.55

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0.48ct Gray Cat'S Eye Alexandrite, Oval, Opaque

0.48ct Gray Cat'S Eye Alexandrite, Oval, Opaque

5.6 x 4.2 mm

$ 79.68

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2.64ctw Brown Tiger'S Eye, Oval, Opaque

2.64ctw Brown Tiger'S Eye, Oval, Opaque

8 x 6 mm (calibrated)

$ 2.63

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0.79ct Blue Kyanite, Oval, SI-I1

0.79ct Blue Kyanite, Oval, SI-I1

6.6 x 4.3 mm

$ 16.44

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3.44ctw Multicolor Labradorite, Pear Shape, Translucent

3.44ctw Multicolor Labradorite, Pear Shape, Translucent

9 x 6 mm (calibrated)

$ 7.61

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0.85ct Orange Sphalerite, Round, SI

0.85ct Orange Sphalerite, Round, SI

5 mm (calibrated)

$ 42.33

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1.80ct Yellow Sphene, Oval, SI
Sphene Product Video (390822)

1.80ct Yellow Sphene, Oval, SI

8.7 x 6.6 mm

$ 86.77

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2.88ct Pink Rose Quartz, Flower Cut, Transparent

2.88ct Pink Rose Quartz, Flower Cut, Transparent

13 x 9 mm (calibrated)

$ 7.35

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18.05ct Multicolor Jasper, Oval, Translucent

18.05ct Multicolor Jasper, Oval, Translucent

20 x 15 mm (calibrated)

$ 15.43

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0.60ct Orange Zircon, Oval, VVS

0.60ct Orange Zircon, Oval, VVS

5 x 4 mm (calibrated)

$ 8.96

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7.93ctw Brown Zircon, Oval, Transparent
Zircon Product Video (337662)

7.93ctw Brown Zircon, Oval, Transparent

6 x 4 mm (calibrated)

$ 60.81

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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

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 -> 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 -> 10 star ratings

Very pleasant

Posted By Varun in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Recomendado Totalmente Los Productos Se Entregaron A Tiempo

Posted By Alexis in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 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
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