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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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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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4.92Ctw White Topaz, Square, Vs

4.92Ctw White Topaz, Square, Vs

4 x 4 mm (calibrated)

$ 45.46

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0.92Ct Light Golden Morganite, Oval, Vs

0.92Ct Light Golden Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 48.58

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0.17Ctw H Diamond, Round, Vvs-Vs

0.17Ctw H Diamond, Round, Vvs-Vs

2.8 mm (calibrated)

$ 372.12

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1.28Ct Tuscany Yellow Beryl, Trillion, Vvs-Vs

1.28Ct Tuscany Yellow Beryl, Trillion, Vvs-Vs

8 x 8 mm (calibrated)

$ 36.86

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3.04Ctw White Topaz, Cushion, Vvs-Vs

3.04Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 20.06

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3.76Ctw Multicolor Andalusite, Round, Vs

3.76Ctw Multicolor Andalusite, Round, Vs

3.1 mm

$ 199.18

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0.77Ct Medium Dark-Purple Spinel, Round, Vvs-Vs

0.77Ct Medium Dark-Purple Spinel, Round, Vvs-Vs

5.3 mm

$ 77.00

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1.97Ct Bluish White Topaz, Marquise, Vvs

1.97Ct Bluish White Topaz, Marquise, Vvs

11.9 x 6 mm

$ 18.20

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0.14Ctw Black Diamond, Square, Opaque

0.14Ctw Black Diamond, Square, Opaque

2.2 x 2.2 mm

$ 84.00

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2.22Ctw Dijon Yellow Golden Beryl, Oval, Vs

2.22Ctw Dijon Yellow Golden Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 73.26

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5.52Ct Medium Pink Morganite, Oval, Translucent

5.52Ct Medium Pink Morganite, Oval, Translucent

13.6 x 10.1 mm

$ 66.24

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3.80Ct Clear White Topaz, Round, Vvs

3.80Ct Clear White Topaz, Round, Vvs

9.5 mm (calibrated)

$ 31.92

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1.57Ct Champagne Diamond, Emerald Cut, Si
Diamond Product Video (382052)

1.57Ct Champagne Diamond, Emerald Cut, Si

6 x 6 mm (calibrated)

$ 4,418.17

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3.51Ct Medium Pink Morganite, Marquise, Translucent

3.51Ct Medium Pink Morganite, Marquise, Translucent

14.9 x 7 mm

$ 46.33

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1.10Ct Deep Purple Spinel, Oval, Vvs-Vs

1.10Ct Deep Purple Spinel, Oval, Vvs-Vs

6.6 x 5.5 mm

$ 141.58

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4.55Ct Clear White Topaz, Oval, Vvs-Vs

4.55Ct Clear White Topaz, Oval, Vvs-Vs

11 x 9 mm (calibrated)

$ 36.04

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0.20Ctw J Diamond, Round, Vvs-Vs
Diamond Product Video (565154)

0.20Ctw J Diamond, Round, Vvs-Vs

3 mm (calibrated)

$ 364.83

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1.38Ct Light Earthy Yellow Golden Beryl, Oval, Vs

1.38Ct Light Earthy Yellow Golden Beryl, Oval, Vs

8.2 x 6.3 mm

$ 45.54

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1.37Ct Medium Purple Spinel, Cushion, Vvs

1.37Ct Medium Purple Spinel, Cushion, Vvs

6.6 x 5.7 mm

$ 274.00

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0.58Ct Yellowish Green Chrysoberyl Cat's Eye, Oval, Translucent

0.58Ct Yellowish Green Chrysoberyl Cat's Eye, Oval, Translucent

4.7 x 4 mm

$ 20.88

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0.60Ct Light Purple Spinel, Round, Vvs-Vs

0.60Ct Light Purple Spinel, Round, Vvs-Vs

5 mm (calibrated)

$ 36.58

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0.48Ct Medium Pink Morganite, Pear Shape, Vvs

0.48Ct Medium Pink Morganite, Pear Shape, Vvs

7.4 x 4.4 mm

$ 34.85

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0.06Ct E Diamond, Marquise, Vvs

0.06Ct E Diamond, Marquise, Vvs

4 x 2 mm (calibrated)

$ 251.25

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1.97Ctw Multicolor Andalusite, Oval, Vs

1.97Ctw Multicolor Andalusite, Oval, Vs

5 x 3.2 mm

$ 126.80

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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

Good selection prices are reasonable!

Posted By ToRa62 in April, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
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 -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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