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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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9.43ct Red Pyrope Garnet, Oval, VS-SI

9.43ct Red Pyrope Garnet, Oval, VS-SI

13.9 x 10.7 mm

$ 234.81

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0.66ct Orange Zircon, Oval, VVS-VS

0.66ct Orange Zircon, Oval, VVS-VS

6 x 4 mm (calibrated)

$ 9.86

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1.31ct Green Peridot, Oval, VVS-VS

1.31ct Green Peridot, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 19.57

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6.42ct Pink Morganite, Round, Transparent

6.42ct Pink Morganite, Round, Transparent

11 mm (calibrated)

$ 64.64

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43.49ct Pink Kunzite, Cushion, VS
Kunzite Product Video (756154)

43.49ct Pink Kunzite, Cushion, VS

22.9 x 15.7 mm

$ 1,217.72

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0.18ct Black Diamond, Round, Opaque

0.18ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 85.62

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5.01ct Pink Morganite, Trillion, Transparent

5.01ct Pink Morganite, Trillion, Transparent

12.8 x 11.9 mm

$ 54.89

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9.85ct Multicolor Jasper, Cushion, Opaque

9.85ct Multicolor Jasper, Cushion, Opaque

16.5 x 12.7 mm

$ 10.80

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5.05ct Multicolor Labradorite, Round, Translucent

5.05ct Multicolor Labradorite, Round, Translucent

10 mm (calibrated)

$ 10.23

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2.66ct Green Tourmaline, Emerald Cut, VS

2.66ct Green Tourmaline, Emerald Cut, VS

20.1 x 4.1 mm

$ 72.86

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1.82ct Orange Zircon, Round, VS

1.82ct Orange Zircon, Round, VS

7 mm (calibrated)

$ 36.17

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2.40ct Green Sphene, Oval, Transparent

2.40ct Green Sphene, Oval, Transparent

8.5 x 6.9 mm

$ 11.95

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2.51ct Pink Strawberry Quartz, Oval, Transparent

2.51ct Pink Strawberry Quartz, Oval, Transparent

10 x 8 mm (calibrated)

$ 18.64

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5.76ct Green Prehnite, Fancy, Translucent

5.76ct Green Prehnite, Fancy, Translucent

16.7 x 10.8 mm

$ 9.46

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2.79ctw White Topaz, Cushion, VVS-VS

2.79ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 15.29

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1.54ctw Green Tsavorite Garnet, Pear Shape, VS

1.54ctw Green Tsavorite Garnet, Pear Shape, VS

5 x 3 mm (calibrated)

$ 81.21

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4.61ct Orange Sunstone, Round, Translucent
Sunstone Product Video (516683)

4.61ct Orange Sunstone, Round, Translucent

11 mm (calibrated)

$ 28.14

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10.31ctw Violet Amethyst, Oval, Transparent

10.31ctw Violet Amethyst, Oval, Transparent

14 x 10 mm (calibrated)

$ 40.78

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1.98ctw Red Pyrope Garnet, Round, Transparent

1.98ctw Red Pyrope Garnet, Round, Transparent

2.1 mm (calibrated)

$ 10.85

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3.44ct Blue Chalcedony, Oval, Transparent

3.44ct Blue Chalcedony, Oval, Transparent

11 x 9 mm (calibrated)

$ 6.86

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0.38ct Blue Kyanite, Round, VS-SI

0.38ct Blue Kyanite, Round, VS-SI

4 mm (calibrated)

$ 9.46

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0.73ct Yellow Beryl, Trillion, VVS

0.73ct Yellow Beryl, Trillion, VVS

7 x 7 mm (calibrated)

$ 14.54

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2.46ct Multicolor Labradorite, Marquise, Translucent

2.46ct Multicolor Labradorite, Marquise, Translucent

12 x 6 mm (calibrated)

$ 5.44

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23.16ct Multicolor Feather Pyrite, Oval, Opaque

23.16ct Multicolor Feather Pyrite, Oval, Opaque

25 x 18 mm (calibrated)

$ 18.07

View Gem
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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

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

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

good navigation and simple interface.

Posted By Dave in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to use website

Posted By Mel in February, 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
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