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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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11.38ctw Multicolor Labradorite, Pear Shape, Translucent

11.38ctw Multicolor Labradorite, Pear Shape, Translucent

16 x 12 mm (calibrated)

$ 22.67

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9.30ct Multicolor Agate, Oval, Opaque

9.30ct Multicolor Agate, Oval, Opaque

13.8 x 12.7 mm

$ 9.26

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2.42ct Yellow Sphene, Oval, Transparent

2.42ct Yellow Sphene, Oval, Transparent

8.1 x 6.8 mm

$ 12.05

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7.32ct Gray Quartz Cat'S Eye, Oval, Opaque

7.32ct Gray Quartz Cat'S Eye, Oval, Opaque

12.8 x 10.2 mm

$ 24.06

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32.92ct White Rainbow Moonstone, Oval, Translucent

32.92ct White Rainbow Moonstone, Oval, Translucent

28.3 x 15.9 mm

$ 32.79

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4.04ct Brown Tiger'S Eye, Oval, Opaque

4.04ct Brown Tiger'S Eye, Oval, Opaque

12.4 x 8.4 mm

$ 4.03

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38.74ctw Yellow Rutile Quartz, Sphere / Ball, Transparent

38.74ctw Yellow Rutile Quartz, Sphere / Ball, Transparent

14 mm (calibrated)

$ 42.44

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0.51ct Green Peridot, Marquise, VS

0.51ct Green Peridot, Marquise, VS

7.5 x 3.7 mm

$ 7.62

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0.92ct Yellow Beryl, Oval, VS

0.92ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 22.91

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1.32ct Purple Spinel, Cushion, VS

1.32ct Purple Spinel, Cushion, VS

6.6 x 6.3 mm

$ 104.13

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1.21ct Orange Hessonite Garnet, Oval, VS

1.21ct Orange Hessonite Garnet, Oval, VS

7 x 6.1 mm

$ 24.10

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13.30ct Gray Jadeite, Oval, Opaque

13.30ct Gray Jadeite, Oval, Opaque

22.7 x 12.5 mm

$ 43.72

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27.41ct Green Jade, Fancy, Translucent

27.41ct Green Jade, Fancy, Translucent

28.2 x 16.9 mm

$ 17.11

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2.66ct Yellow Apatite, Emerald Cut, VS
Apatite Product Video (439372)

2.66ct Yellow Apatite, Emerald Cut, VS

8 x 8 mm (calibrated)

$ 136.97

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7.24ctw Yellow Citrine, Emerald Cut, VVS-VS

7.24ctw Yellow Citrine, Emerald Cut, VVS-VS

11 x 9 mm (calibrated)

$ 55.53

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68.39ctw Gray Hematite, Pear Shape, Opaque

68.39ctw Gray Hematite, Pear Shape, Opaque

24.9 x 20 mm

$ 66.69

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4.71ct Multicolor Fire Agate, Fancy, Opaque

4.71ct Multicolor Fire Agate, Fancy, Opaque

10.6 x 9.7 mm

$ 27.87

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4.36ctw Red Pyrope Garnet, Marquise, VVS-VS

4.36ctw Red Pyrope Garnet, Marquise, VVS-VS

12 x 6.1 mm

$ 38.21

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2.40ct Orange Zircon, Round, VVS

2.40ct Orange Zircon, Round, VVS

7.5 mm (calibrated)

$ 65.74

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13.73ctw Black Spinel, Round, Opaque

13.73ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.13

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2.82ctw Green Peridot, Round, VVS-VS

2.82ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 42.13

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0.64ct Yellow Citrine, Pear Shape, VVS

0.64ct Yellow Citrine, Pear Shape, VVS

7 x 5 mm (calibrated)

$ 3.19

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3.52ct Red Sunstone, Oval, Translucent

3.52ct Red Sunstone, Oval, Translucent

12 x 10 mm (calibrated)

$ 19.28

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1.62ct Yellow Citrine, Emerald Cut, VVS-VS

1.62ct Yellow Citrine, Emerald Cut, VVS-VS

8 x 6 mm (calibrated)

$ 12.91

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

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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