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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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1.58ct Orange Hessonite Garnet, Emerald Cut, VVS-VS

1.58ct Orange Hessonite Garnet, Emerald Cut, VVS-VS

7.1 x 5.3 mm

$ 23.50

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0.53ct Orange Sphalerite, Round, SI-I1

0.53ct Orange Sphalerite, Round, SI-I1

4.5 mm (calibrated)

$ 26.39

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2.44ct Orange Hessonite Garnet, Cushion, VS-SI

2.44ct Orange Hessonite Garnet, Cushion, VS-SI

9 x 7 mm (calibrated)

$ 43.74

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7.25ct Yellow Rutile Quartz, Pear Shape, Translucent

7.25ct Yellow Rutile Quartz, Pear Shape, Translucent

15.1 x 11 mm

$ 19.70

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0.76ct Orange Zircon, Oval, VVS

0.76ct Orange Zircon, Oval, VVS

6 x 4 mm (calibrated)

$ 11.35

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1.97ct Blue Aquamarine, Emerald Cut, VS
Aquamarine Product Video (757031)

1.97ct Blue Aquamarine, Emerald Cut, VS

9 x 7 mm (calibrated)

$ 236.40

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14.23ct Black Nuummite, Oval, Opaque

14.23ct Black Nuummite, Oval, Opaque

18 x 16.2 mm

$ 58.40

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1.27ct Brown Chocolate Opal, Oval, Translucent

1.27ct Brown Chocolate Opal, Oval, Translucent

10 x 7.5 mm

$ 37.95

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1.82ct Orange Moonstone, Trillion, Translucent

1.82ct Orange Moonstone, Trillion, Translucent

8 x 8 mm (calibrated)

$ 3.63

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4.22ct Yellow Citrine, Oval, VVS-VS

4.22ct Yellow Citrine, Oval, VVS-VS

12 x 10 mm (calibrated)

$ 32.36

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4.37ctw Multicolor Spectrolite, Oval, Opaque

4.37ctw Multicolor Spectrolite, Oval, Opaque

10 x 8 mm (calibrated)

$ 19.98

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1.02ct Yellow Citrine, Emerald Cut, VVS-VS

1.02ct Yellow Citrine, Emerald Cut, VVS-VS

12.2 x 4 mm

$ 8.13

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24.26ct White Agate, Oval, Opaque

24.26ct White Agate, Oval, Opaque

27.9 x 16.6 mm

$ 38.41

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26.54ctw Multicolor Labradorite, Round, Translucent

26.54ctw Multicolor Labradorite, Round, Translucent

20 mm (calibrated)

$ 58.16

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1.08ct Orange Zircon, Oval, VVS

1.08ct Orange Zircon, Oval, VVS

5.9 x 4.9 mm

$ 16.14

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1.24ct Pink Morganite, Round, VS-SI

1.24ct Pink Morganite, Round, VS-SI

7.5 mm (calibrated)

$ 95.10

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1.08ct Blue Aquamarine, Oval, VS

1.08ct Blue Aquamarine, Oval, VS

8 x 6 mm (calibrated)

$ 129.60

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0.57ct Green Tourmaline, Baguette, VVS-VS

0.57ct Green Tourmaline, Baguette, VVS-VS

5.7 x 4.3 mm

$ 28.39

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13.75ct Pink Rose Quartz, Emerald Cut, Transparent

13.75ct Pink Rose Quartz, Emerald Cut, Transparent

15 x 15 mm (calibrated)

$ 75.33

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0.16ct Blue Aquamarine, Square, VVS-VS

0.16ct Blue Aquamarine, Square, VVS-VS

3 x 3 mm (calibrated)

$ 22.31

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0.72ct Pink Tourmaline, Round, Transparent

0.72ct Pink Tourmaline, Round, Transparent

5.3 mm

$ 28.68

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1.66ct Pink Morganite, Oval, VVS-VS

1.66ct Pink Morganite, Oval, VVS-VS

9.4 x 7.2 mm

$ 72.75

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3.03ct Yellow Apatite, Emerald Cut, VS

3.03ct Yellow Apatite, Emerald Cut, VS

8 x 8 mm (calibrated)

$ 156.02

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2.11ct Green Tourmaline, Emerald Cut, VVS

2.11ct Green Tourmaline, Emerald Cut, VVS

18.3 x 3.6 mm

$ 57.80

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

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

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
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

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 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 -> 9 star ratings

I do enjoy this website and the wide selection. I would like to see more untreated stones. I also wasn't able to see my past order when I logged in.

Posted By Great selection, ok website in July, 2026
Source: Bizrate
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