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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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0.70ct Orange Zircon, Oval, VVS-VS

0.70ct Orange Zircon, Oval, VVS-VS

6 x 4 mm (calibrated)

$ 10.46

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2.47ct Orange Hessonite Garnet, Oval, VS-SI

2.47ct Orange Hessonite Garnet, Oval, VS-SI

9 x 7.5 mm

$ 48.71

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1.32ct Orange Hessonite Garnet, Square, VS-SI

1.32ct Orange Hessonite Garnet, Square, VS-SI

6 x 6 mm (calibrated)

$ 22.14

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2.42ct Multicolor Labradorite, Pear Shape, Translucent

2.42ct Multicolor Labradorite, Pear Shape, Translucent

10 x 7 mm (calibrated)

$ 5.35

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29.52ct Multicolor Moss Agate, Pear Shape, Opaque

29.52ct Multicolor Moss Agate, Pear Shape, Opaque

31.7 x 23.5 mm

$ 29.40

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8.91ctw Black Spinel, Trillion, Opaque

8.91ctw Black Spinel, Trillion, Opaque

10 x 10 mm (calibrated)

$ 48.81

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1.88ct Green Tourmaline, Emerald Cut, VVS-VS

1.88ct Green Tourmaline, Emerald Cut, VVS-VS

20.9 x 3.3 mm

$ 49.43

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4.20ctw Orange Sunstone, Oval, Translucent

4.20ctw Orange Sunstone, Oval, Translucent

7 x 5 mm (calibrated)

$ 32.21

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2.44ct Yellow Citrine, Trillion, VS

2.44ct Yellow Citrine, Trillion, VS

9 x 9 mm (calibrated)

$ 18.72

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2.08ct Orange Hessonite Garnet, Cushion, VS

2.08ct Orange Hessonite Garnet, Cushion, VS

8 x 6 mm (calibrated)

$ 41.43

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3.69ct White Moonstone, Oval, Translucent

3.69ct White Moonstone, Oval, Translucent

12 x 10 mm (calibrated)

$ 40.43

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5.63ct Yellow Citrine, Cushion, VVS

5.63ct Yellow Citrine, Cushion, VVS

15.7 x 9.1 mm

$ 43.18

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0.51ct Yellow Grossularite Garnet, Round, VS

0.51ct Yellow Grossularite Garnet, Round, VS

5 mm (calibrated)

$ 12.85

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39.01ctw Multicolor Jasper, Fancy, Opaque

39.01ctw Multicolor Jasper, Fancy, Opaque

36.2 x 15.1 mm

$ 51.29

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4.51ct Yellow Citrine, Oval, VVS-VS

4.51ct Yellow Citrine, Oval, VVS-VS

14 x 10 mm (calibrated)

$ 27.07

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5.90ct White Topaz, Cushion, VVS-VS

5.90ct White Topaz, Cushion, VVS-VS

12 x 10 mm (calibrated)

$ 39.18

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9.66ct Pink Rose Quartz, Flower Cut, Transparent/Translucent

9.66ct Pink Rose Quartz, Flower Cut, Transparent/Translucent

13 x 13 mm (calibrated)

$ 31.76

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12.62ct Brown Tiger'S Eye, Baguette, Opaque

12.62ct Brown Tiger'S Eye, Baguette, Opaque

18 x 13 mm (calibrated)

$ 12.57

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2.65ct Violet Amethyst, Trillion, VS

2.65ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 20.33

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0.54ct Orange Spessartite Garnet, Oval, VS-SI

0.54ct Orange Spessartite Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 18.82

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1.34ct Pink Morganite, Pear Shape, VVS
Morganite Product Video (582782)

1.34ct Pink Morganite, Pear Shape, VVS

8.1 x 6.5 mm

$ 58.72

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1.03ct Blue Kyanite, Oval, VS-SI

1.03ct Blue Kyanite, Oval, VS-SI

7 x 5 mm (calibrated)

$ 22.57

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2.18ctw Red Pyrope Garnet, Marquise, VVS-VS

2.18ctw Red Pyrope Garnet, Marquise, VVS-VS

10.2 x 5.1 mm

$ 19.11

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0.03ct White Diamond, Round, VVS

0.03ct White Diamond, Round, VVS

2 mm (calibrated)

$ 68.48

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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 -> 9 star ratings

Easy to use. Many options to find the right gemstone

Posted By Liz in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

Posted By Amman in May, 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

Overall Rating -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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