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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
Black Natural Untreated Gemstones
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Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
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White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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6.99Ctw Black Spinel, Round, Opaque
Spinel Product Video (553008)

6.99Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 36.91

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1.98Ct Light Earthy Yellow Beryl, Round, Vvs-Vs

1.98Ct Light Earthy Yellow Beryl, Round, Vvs-Vs

9 mm (calibrated)

$ 57.02

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5.27Ctw White Topaz, Square, Vs

5.27Ctw White Topaz, Square, Vs

3.6 x 3.6 mm

$ 46.27

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2.00Ct Light Yellow Golden Beryl, Oval, Vvs-Vs

2.00Ct Light Yellow Golden Beryl, Oval, Vvs-Vs

10.2 x 7.7 mm

$ 66.00

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0.10Ctw Black Diamond, Round, Opaque

0.10Ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 35.00

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3.65Ct Flamingo Pink Morganite, Trillion, Transparent

3.65Ct Flamingo Pink Morganite, Trillion, Transparent

10.5 x 9.8 mm

$ 48.18

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7.49Ctw White Topaz, Square, Vvs

7.49Ctw White Topaz, Square, Vvs

5 x 5 mm (calibrated)

$ 75.32

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 12.37

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0.81Ct Medium Purple Spinel, Cushion, Vvs-Vs

0.81Ct Medium Purple Spinel, Cushion, Vvs-Vs

5.8 x 5.7 mm

$ 58.46

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0.82Ct Light Golden Morganite, Cushion, Vs

0.82Ct Light Golden Morganite, Cushion, Vs

5.8 x 5.7 mm

$ 59.53

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0.64Ct Grape Purple Spinel, Emerald Cut, Vvs

0.64Ct Grape Purple Spinel, Emerald Cut, Vvs

5.9 x 3.6 mm

$ 27.58

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3.89Ctw Clear White Topaz, Square, Vs-Si

3.89Ctw Clear White Topaz, Square, Vs-Si

3.5 x 3.5 mm

$ 35.94

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22.46Ctw Black Spinel, Oval, Opaque

22.46Ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 103.76

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4.38Ct Flamingo Pink Morganite, Pear Shape, Transparent

4.38Ct Flamingo Pink Morganite, Pear Shape, Transparent

13.5 x 9.7 mm

$ 57.82

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 12.37

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7.97Ctw White Topaz, Square, Vvs-Vs
Topaz Product Video (341386)

7.97Ctw White Topaz, Square, Vvs-Vs

5 x 5 mm (calibrated)

$ 76.84

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1.36Ct Medium Purple Spinel, Cushion, Vvs-Vs

1.36Ct Medium Purple Spinel, Cushion, Vvs-Vs

6.8 x 6.4 mm

$ 163.20

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1.28Ct Light Pink Morganite, Round, Vvs-Vs

1.28Ct Light Pink Morganite, Round, Vvs-Vs

7 mm (calibrated)

$ 118.27

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0.53Ct Medium Pink Morganite, Pear Shape, Vvs

0.53Ct Medium Pink Morganite, Pear Shape, Vvs

7.4 x 4.1 mm

$ 38.48

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1.09Ct Light Purple Spinel, Cushion, Vvs-Vs

1.09Ct Light Purple Spinel, Cushion, Vvs-Vs

5.8 x 5.4 mm

$ 92.54

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0.15Ct Light Pink Morganite, Round, Vvs-Vs

0.15Ct Light Pink Morganite, Round, Vvs-Vs

3.5 mm (calibrated)

$ 7.50

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0.09Ct Light Green Alexandrite, Pear Shape, Vs

0.09Ct Light Green Alexandrite, Pear Shape, Vs

3.3 x 2.5 mm

$ 75.60

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0.94Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

0.94Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

6.5 x 5 mm

$ 235.00

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0.83Ct Medium-Light Pink Morganite, Pear Shape, Vvs-Vs

0.83Ct Medium-Light Pink Morganite, Pear Shape, Vvs-Vs

7 x 5.4 mm

$ 60.26

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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

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 -> 10 star ratings

I have been very happy with my prior purchases and enjoy the website experience.

Posted By Trouble in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

hassle free experience.

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