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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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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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1.60ct Yellow Beryl, Round, VVS

1.60ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 31.87

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0.40ct Pink Morganite, Round, VS-SI

0.40ct Pink Morganite, Round, VS-SI

5 mm (calibrated)

$ 16.60

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0.04ct Black Diamond, Round, Opaque

0.04ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 13.70

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3.85ct White Topaz, Oval, VS
Topaz Product Video (422014)

3.85ct White Topaz, Oval, VS

11 x 9 mm (calibrated)

$ 21.10

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1.50ct Yellow Beryl, Oval, VS

1.50ct Yellow Beryl, Oval, VS

9 x 7 mm (calibrated)

$ 28.64

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1.00ct Purple Spinel, Cushion, VS

1.00ct Purple Spinel, Cushion, VS

6.6 x 5.5 mm

$ 119.52

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2.91ctw Yellow Golden Beryl, Oval, VVS-VS

2.91ctw Yellow Golden Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 63.76

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0.99ct Purple Spinel, Pear Shape, VS

0.99ct Purple Spinel, Pear Shape, VS

8 x 6 mm (calibrated)

$ 81.36

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3.87ctw White Topaz, Square, VVS-VS

3.87ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 29.68

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1.02ct Yellow Morganite, Oval, VVS-VS

1.02ct Yellow Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 55.88

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3.00ctw White Topaz, Cushion, VVS-VS

3.00ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 16.43

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1.19ct Yellow Beryl, Trillion, VVS

1.19ct Yellow Beryl, Trillion, VVS

8 x 8 mm (calibrated)

$ 23.70

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3.03ctw White Topaz, Cushion, VVS-VS

3.03ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 16.60

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0.81ct Purple Spinel, Cushion, VS

0.81ct Purple Spinel, Cushion, VS

5.6 x 4.8 mm

$ 40.70

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2.29ct Pink Morganite, Round, Translucent

2.29ct Pink Morganite, Round, Translucent

8 mm (calibrated)

$ 25.09

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 24.20

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0.36ct Pink Morganite, Oval, VS-SI

0.36ct Pink Morganite, Oval, VS-SI

5.9 x 4.3 mm

$ 14.94

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0.02ct Black Diamond, Round, Opaque

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 15.94

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0.15ctw White Diamond, Round, VVS-VS

0.15ctw White Diamond, Round, VVS-VS

2.7 mm (calibrated)

$ 268.16

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1.21ct Pink Morganite, Pear Shape, VS

1.21ct Pink Morganite, Pear Shape, VS

10.6 x 6 mm

$ 92.79

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0.08ct Black Diamond, Round, Opaque

0.08ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 27.38

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1.26ct Yellow Beryl, Trillion, VVS-VS

1.26ct Yellow Beryl, Trillion, VVS-VS

8 x 8 mm (calibrated)

$ 25.10

View Gem
3.81ctw White Topaz, Square, VVS-VS

3.81ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 30.68

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 -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 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

GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'

Posted By CJ in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

easy interface for a pricless buy

Posted By Zeak in May, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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