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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

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For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
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Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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0.85Ct Light Neutral Orange Morganite, Pear Shape, Vs

0.85Ct Light Neutral Orange Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 44.88

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2.37Ct Very Light Dijon Yellow Beryl, Oval, Vs

2.37Ct Very Light Dijon Yellow Beryl, Oval, Vs

10 x 8 mm (calibrated)

$ 56.88

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3.38Ct White Topaz, Oval, Vvs-Vs

3.38Ct White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 31.24

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1.15Ct Dijon Yellow Beryl, Trillion, Vs

1.15Ct Dijon Yellow Beryl, Trillion, Vs

7 x 7 mm (calibrated)

$ 33.12

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3.81Ctw Multicolor Andalusite, Round, Vs
Andalusite Product Video (382236)

3.81Ctw Multicolor Andalusite, Round, Vs

3 mm (calibrated)

$ 168.19

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1.53Ct Light Gold Beryl, Oval, Vvs

1.53Ct Light Gold Beryl, Oval, Vvs

9 x 7 mm (calibrated)

$ 36.72

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0.06Ct Black Diamond, Round, Opaque

0.06Ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 24.74

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2.92Ctw Clear White Topaz, Cushion, Vvs-Vs

2.92Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.27

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0.76Ct Light Golden Morganite, Pear Shape, Vs

0.76Ct Light Golden Morganite, Pear Shape, Vs

8 x 5.7 mm

$ 40.13

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1.52Ct Light Pink Morganite, Round, Vvs-Vs

1.52Ct Light Pink Morganite, Round, Vvs-Vs

8 mm (calibrated)

$ 100.32

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0.74Ct Light Coral Pink Morganite, Pear Shape, Vvs

0.74Ct Light Coral Pink Morganite, Pear Shape, Vvs

9 x 4.9 mm

$ 78.14

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0.09Ctw Black Diamond, Round, Opaque
Diamond Product Video (685617)

0.09Ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 31.50

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1.45Ct Dark Purple Spinel, Cushion, Vvs

1.45Ct Dark Purple Spinel, Cushion, Vvs

6.8 x 6.2 mm

$ 128.62

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0.36Ct Deep Red Spinel, Baguette, Vvs-Vs

0.36Ct Deep Red Spinel, Baguette, Vvs-Vs

3.7 x 3 mm

$ 36.00

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3.39Ct Light Blue-Green Aquamarine, Pear Shape, Translucent
Aquamarine Product Video (497428)

3.39Ct Light Blue-Green Aquamarine, Pear Shape, Translucent

11.4 x 7.6 mm

$ 237.30

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0.31Ct Pastel Blue Spinel, Round, Vs

0.31Ct Pastel Blue Spinel, Round, Vs

4 mm (calibrated)

$ 27.90

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2.08Ctw Multicolor Andalusite, Oval, Vs-Si

2.08Ctw Multicolor Andalusite, Oval, Vs-Si

6 x 4 mm (calibrated)

$ 123.55

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1.15Ct Clear White Topaz, Oval, Transparent

1.15Ct Clear White Topaz, Oval, Transparent

10.1 x 4.2 mm

$ 7.60

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0.02Ct Black Diamond, Round, Opaque

0.02Ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 19.20

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1.16Ct Light Reddish Purple Spinel, Cushion, Vvs-Vs

1.16Ct Light Reddish Purple Spinel, Cushion, Vvs-Vs

7 x 5 mm (calibrated)

$ 110.24

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6.27Ct Black Spinel, Round, Opaque

6.27Ct Black Spinel, Round, Opaque

12 mm (calibrated)

$ 20.69

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1.93Ct Light Gold Beryl, Round, Vvs

1.93Ct Light Gold Beryl, Round, Vvs

8 mm (calibrated)

$ 50.95

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0.07Ct Black Diamond, Round, Opaque

0.07Ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 40.81

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1.34Ct Very Light Rose Pink Morganite, Round, Vvs-Vs

1.34Ct Very Light Rose Pink Morganite, Round, Vvs-Vs

7 mm (calibrated)

$ 123.82

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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

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to use. No issues. Large selection of gems.

Posted By CLTCJH in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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