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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

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For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
Blue 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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7.86ct Yellow Citrine, Emerald Cut, VVS-VS

7.86ct Yellow Citrine, Emerald Cut, VVS-VS

14 x 10 mm (calibrated)

$ 60.27

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24.55ct Violet Amethyst, Round, VVS

24.55ct Violet Amethyst, Round, VVS

20 mm (calibrated)

$ 171.16

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7.28ct Yellow Citrine, Briolette, VVS-VS

7.28ct Yellow Citrine, Briolette, VVS-VS

14.7 x 9.2 mm

$ 41.08

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6.20ct Blue Larimar, Round, Translucent

6.20ct Blue Larimar, Round, Translucent

12 mm (calibrated)

$ 74.14

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7.40ctw Yellow Citrine, Oval, VVS-VS
Citrine Product Video (698589)

7.40ctw Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 51.59

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1.43ct Orange Hessonite Garnet, Emerald Cut, VS

1.43ct Orange Hessonite Garnet, Emerald Cut, VS

5.9 x 5.8 mm

$ 28.20

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1.07ct White Rainbow Moonstone, Oval, Transparent

1.07ct White Rainbow Moonstone, Oval, Transparent

8 x 6 mm (calibrated)

$ 34.10

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41.25ctw Gray Hematite, Emerald Cut, Opaque

41.25ctw Gray Hematite, Emerald Cut, Opaque

20 x 15 mm (calibrated)

$ 40.22

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3.42ct Yellow Citrine, Oval, VVS-VS

3.42ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 23.85

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1.44ct Yellow Beryl, Round, VVS

1.44ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 28.68

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4.31ctw Orange Zircon, Round, VVS-VS
Zircon Product Video (481453)

4.31ctw Orange Zircon, Round, VVS-VS

6 mm (calibrated)

$ 102.80

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0.55ct Blue Kyanite, Round, SI

0.55ct Blue Kyanite, Round, SI

4.3 mm

$ 13.70

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1.86ctw Blue Kyanite, Oval, VS-SI

1.86ctw Blue Kyanite, Oval, VS-SI

7 x 5 mm (calibrated)

$ 50.95

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1.54ct Pink Tourmaline, Emerald Cut, VVS-VS

1.54ct Pink Tourmaline, Emerald Cut, VVS-VS

7 x 5.6 mm

$ 101.24

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0.58ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

0.58ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

4.7 x 4 mm

$ 17.33

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2.77ct Purple Rhodolite Garnet, Oval, VVS

2.77ct Purple Rhodolite Garnet, Oval, VVS

8.9 x 7.7 mm

$ 74.26

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2.16ctw Red Pyrope Garnet, Marquise, VVS-VS

2.16ctw Red Pyrope Garnet, Marquise, VVS-VS

10 x 5.1 mm

$ 18.93

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30.74ct Brown Tiger'S Eye, Fancy, Opaque

30.74ct Brown Tiger'S Eye, Fancy, Opaque

33.5 x 10.5 mm

$ 3.05

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14.24ctw Multicolor Labradorite, Round, Translucent

14.24ctw Multicolor Labradorite, Round, Translucent

13 mm (calibrated)

$ 30.64

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20.12ct Green Jadeite, Oval, Translucent

20.12ct Green Jadeite, Oval, Translucent

23.7 x 15.9 mm

$ 55.11

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17.19ct Green Maw-Sit-Sit, Oval, Opaque

17.19ct Green Maw-Sit-Sit, Oval, Opaque

16 x 13.4 mm

$ 56.51

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1.06ct Purple Spinel, Cushion, VS

1.06ct Purple Spinel, Cushion, VS

6.2 x 5.4 mm

$ 52.39

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5.06ct Yellow Citrine, Oval, VVS-VS

5.06ct Yellow Citrine, Oval, VVS-VS

14 x 10 mm (calibrated)

$ 30.38

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3.56ct Yellow Rutile Topaz, Heart, Transparent
Rutile Topaz Product Video (753580)

3.56ct Yellow Rutile Topaz, Heart, Transparent

11 x 9 mm (calibrated)

$ 73.87

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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

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Had a great experience and the prices are great

Posted By BuBx99 in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

Posted By Guero in March, 2026
Source: Bizrate
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