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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
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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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0.13ctw White Diamond, Marquise, VVS
Diamond Product Video (740701)

0.13ctw White Diamond, Marquise, VVS

4 x 2 mm (calibrated)

$ 451.83

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1.40ct Yellow Rutile Topaz, Pear Shape, Transparent

1.40ct Yellow Rutile Topaz, Pear Shape, Transparent

9 x 6 mm (calibrated)

$ 29.05

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1.04ct Purple Spinel, Cushion, VS

1.04ct Purple Spinel, Cushion, VS

6.8 x 5.9 mm

$ 76.56

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0.80ct Pink Morganite, Pear Shape, VVS-VS

0.80ct Pink Morganite, Pear Shape, VVS-VS

8 x 5 mm (calibrated)

$ 70.12

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1.21ct Purple Spinel, Cushion, VVS-VS

1.21ct Purple Spinel, Cushion, VVS-VS

6.2 x 5.5 mm

$ 86.17

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1.16ct Purple Spinel, Cushion, VS

1.16ct Purple Spinel, Cushion, VS

6.9 x 5.3 mm

$ 138.64

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0.58ct Pink Morganite, Pear Shape, VVS

0.58ct Pink Morganite, Pear Shape, VVS

7.8 x 4.8 mm

$ 34.95

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3.51ct Pink Morganite, Marquise, Translucent

3.51ct Pink Morganite, Marquise, Translucent

14.9 x 7 mm

$ 38.45

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0.60ct Purple Spinel, Round, VVS-VS

0.60ct Purple Spinel, Round, VVS-VS

5 mm (calibrated)

$ 30.36

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6.70ctw White Topaz, Oval, VVS-VS
Topaz Product Video (462375)

6.70ctw White Topaz, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 36.70

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14.64ct Black Spinel, Baguette, Opaque

14.64ct Black Spinel, Baguette, Opaque

20.2 x 10.1 mm

$ 48.12

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1.18ct Yellow Beryl, Trillion, VS

1.18ct Yellow Beryl, Trillion, VS

8 x 8 mm (calibrated)

$ 28.20

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0.52ct Pink Morganite, Oval, VS

0.52ct Pink Morganite, Oval, VS

6.6 x 4.8 mm

$ 23.31

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5.63ct Blue Aquamarine, Oval, Translucent

5.63ct Blue Aquamarine, Oval, Translucent

14 x 10 mm (calibrated)

$ 116.82

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1.21ct Pink Morganite, Pear Shape, VS

1.21ct Pink Morganite, Pear Shape, VS

9.9 x 5.5 mm

$ 92.79

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5.38ctw White Topaz, Round, VVS-VS

5.38ctw White Topaz, Round, VVS-VS

8.5 mm (calibrated)

$ 41.27

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0.29ct Pink Morganite, Round, VS

0.29ct Pink Morganite, Round, VS

4.5 mm (calibrated)

$ 12.04

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5.19ct Turquoise Aquamarine, Oval, Translucent

5.19ct Turquoise Aquamarine, Oval, Translucent

14 x 10 mm (calibrated)

$ 107.69

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1.10ct Yellow Beryl, Oval, VVS-VS

1.10ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 21.91

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0.48ct Pink Morganite, Round, VS-SI

0.48ct Pink Morganite, Round, VS-SI

5.5 mm (calibrated)

$ 19.92

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4.88ctw White Topaz, Square, VVS-VS

4.88ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 35.72

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1.33ct Purple Spinel, Cushion, VVS

1.33ct Purple Spinel, Cushion, VVS

6.3 x 6 mm

$ 104.91

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1.46ct Violet Sapphire, Cushion, VS
Sapphire Product Video (447871)

1.46ct Violet Sapphire, Cushion, VS

7.3 x 5.4 mm

$ 699.95

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0.03ct White Diamond, Round, VVS

0.03ct White Diamond, Round, VVS

2 mm (calibrated)

$ 68.48

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

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 2025
Source: Bizrate

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

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 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

Overall Rating -> 10 star ratings

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

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