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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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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
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White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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1.31Ct Sangria Spinel, Cushion, Vvs-Vs

1.31Ct Sangria Spinel, Cushion, Vvs-Vs

6.4 x 6.2 mm

$ 124.51

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1.12Ct Light Purple Spinel, Cushion, Vs

1.12Ct Light Purple Spinel, Cushion, Vs

6.3 x 6.1 mm

$ 100.79

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1.01Ct Blackish Purple Spinel, Cushion, Vs
Spinel Product Video (743185)

1.01Ct Blackish Purple Spinel, Cushion, Vs

6 x 6 mm (calibrated)

$ 121.20

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1.09Ct Dark Red Spinel, Cushion, Vs

1.09Ct Dark Red Spinel, Cushion, Vs

6.5 mm (calibrated)

$ 141.70

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0.58Ct Blue-Green Silver Spinel, Cushion, Vvs-Vs

0.58Ct Blue-Green Silver Spinel, Cushion, Vvs-Vs

5.5 x 4.3 mm

$ 58.00

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1.30Ct Medium Purple Spinel, Cushion, Vs

1.30Ct Medium Purple Spinel, Cushion, Vs

6.3 x 5.9 mm

$ 120.12

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0.58Ct Light Pink Spinel, Cushion, Vs

0.58Ct Light Pink Spinel, Cushion, Vs

5 x 5 mm (calibrated)

$ 24.98

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0.78Ct Medium Purple Spinel, Emerald Cut, Vvs-Vs

0.78Ct Medium Purple Spinel, Emerald Cut, Vvs-Vs

5.5 x 5.2 mm

$ 33.60

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1.32Ctw White Topaz, Oval, Vvs

1.32Ctw White Topaz, Oval, Vvs

6 x 4 mm (calibrated)

$ 11.09

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0.91Ct Light Earthy Yellow Beryl, Oval, Vvs-Vs

0.91Ct Light Earthy Yellow Beryl, Oval, Vvs-Vs

7.8 x 5.7 mm

$ 21.84

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2.88Ctw White Topaz, Oval, Vvs-Vs

2.88Ctw White Topaz, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 24.19

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1.21Ct Salmon Pink Morganite, Pear Shape, Vs

1.21Ct Salmon Pink Morganite, Pear Shape, Vs

10.3 x 5.9 mm

$ 111.80

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3.87Ct Light Pink Morganite, Trillion, Transparent

3.87Ct Light Pink Morganite, Trillion, Transparent

11.2 x 10.3 mm

$ 19.35

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1.40Ct Pinkish Purple Sapphire, Cushion, Vs
Sapphire Product Video (448495)

1.40Ct Pinkish Purple Sapphire, Cushion, Vs

6.7 x 5.2 mm

$ 890.74

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1.34Ctw White Topaz, Oval, Vvs

1.34Ctw White Topaz, Oval, Vvs

6.2 x 4.2 mm

$ 11.26

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0.06Ct Black Diamond, Round, Opaque

0.06Ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 34.98

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8.32Ctw White Topaz, Square, Vvs

8.32Ctw White Topaz, Square, Vvs

5 x 5 mm (calibrated)

$ 83.95

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10.51Ct Light Pink Morganite, Pear Shape, Translucent

10.51Ct Light Pink Morganite, Pear Shape, Translucent

16 x 12 mm (calibrated)

$ 138.73

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0.97Ct Light Gold Beryl, Pear Shape, Vvs

0.97Ct Light Gold Beryl, Pear Shape, Vvs

8 x 6 mm (calibrated)

$ 23.28

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0.19Ct L Diamond, Round, Vvs

0.19Ct L Diamond, Round, Vvs

3.5 mm (calibrated)

$ 384.34

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0.61Ct Earthy Pink Spinel, Cushion, Vvs-Vs

0.61Ct Earthy Pink Spinel, Cushion, Vvs-Vs

6.3 x 4.4 mm

$ 61.00

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5.09Ct Flamingo Pink Morganite, Oval, Translucent

5.09Ct Flamingo Pink Morganite, Oval, Translucent

12.9 x 10 mm

$ 67.19

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13.52Ctw Black Spinel, Oval, Opaque

13.52Ctw Black Spinel, Oval, Opaque

14 x 10 mm (calibrated)

$ 62.46

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0.09Ctw Black Diamond, Round, Opaque

0.09Ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 31.50

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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. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 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

I love the product and the details about each of them.

Posted By Love It! in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate
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