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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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1.84ctw Yellow Golden Beryl, Oval, VVS-VS

1.84ctw Yellow Golden Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 50.40

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7.52ct Pink Morganite, Oval, Translucent

7.52ct Pink Morganite, Oval, Translucent

13 x 11 mm (calibrated)

$ 82.39

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1.40ct Yellow Beryl, Oval, VVS

1.40ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 27.89

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3.57ct Pink Morganite, Oval, Translucent

3.57ct Pink Morganite, Oval, Translucent

11 x 9 mm (calibrated)

$ 39.11

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1.26ct Purple Spinel, Cushion, VVS-VS

1.26ct Purple Spinel, Cushion, VVS-VS

6.7 x 5.6 mm

$ 94.99

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2.22ctw Multicolor Andalusite, Oval, VS

2.22ctw Multicolor Andalusite, Oval, VS

6 x 4 mm (calibrated)

$ 119.04

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0.56ct Pink Morganite, Pear Shape, VVS-VS

0.56ct Pink Morganite, Pear Shape, VVS-VS

6 x 6 mm (calibrated)

$ 33.75

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0.94ct Pink Morganite, Pear Shape, VVS

0.94ct Pink Morganite, Pear Shape, VVS

8 x 6 mm (calibrated)

$ 39.01

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6.63ctw Black Spinel, Round, Opaque

6.63ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 29.05

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4.59ctw White Topaz, Square, VS

4.59ctw White Topaz, Square, VS

4 x 4 mm (calibrated)

$ 35.20

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0.21ct Pink Morganite, Round, VVS-VS

0.21ct Pink Morganite, Round, VVS-VS

4.2 mm

$ 8.72

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1.24ct Pink Morganite, Oval, VVS-VS

1.24ct Pink Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 81.51

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1.98ct Pink Morganite, Round, Transparent

1.98ct Pink Morganite, Round, Transparent

8 mm (calibrated)

$ 21.70

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0.93ct Pink Morganite, Pear Shape, VVS

0.93ct Pink Morganite, Pear Shape, VVS

9.4 x 5.3 mm

$ 81.51

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1.61ct Yellow Beryl, Round, VVS-VS

1.61ct Yellow Beryl, Round, VVS-VS

8 mm (calibrated)

$ 32.07

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2.86ctw White Topaz, Cushion, VVS-VS

2.86ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 15.67

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0.74ct Purple Spinel, Oval, VS

0.74ct Purple Spinel, Oval, VS

5.9 x 5.2 mm

$ 61.42

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0.36ct Pink Morganite, Round, VS-SI

0.36ct Pink Morganite, Round, VS-SI

5 mm (calibrated)

$ 14.94

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1.76ctw Multicolor Andalusite, Oval, VS

1.76ctw Multicolor Andalusite, Oval, VS

5.7 x 4 mm

$ 96.41

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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3.87ct White Topaz, Round, VS

3.87ct White Topaz, Round, VS

9.5 mm (calibrated)

$ 21.21

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0.32ct Pink Morganite, Pear Shape, VVS-VS

0.32ct Pink Morganite, Pear Shape, VVS-VS

6 x 4 mm (calibrated)

$ 14.34

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1.82ct Brown Diamond, Pear Shape, SI
Diamond Product Video (382117)

1.82ct Brown Diamond, Pear Shape, SI

8.4 x 6.1 mm

$ 4,251.02

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0.98ct Purple Spinel, Cushion, VVS-VS

0.98ct Purple Spinel, Cushion, VVS-VS

6.3 x 5.4 mm

$ 53.68

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 -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 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

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Good prices

Posted By TRM in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
Source: Bizrate
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