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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
Blue Natural Untreated Gemstones
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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0.05Ct Black Diamond, Round, Opaque

0.05Ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 20.62

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5.01Ct Light Pink Morganite, Oval, Translucent

5.01Ct Light Pink Morganite, Oval, Translucent

14 x 10 mm (calibrated)

$ 66.13

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2.98Ctw Light Gold Golden Beryl, Oval, Vvs-Vs

2.98Ctw Light Gold Golden Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 86.54

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0.54Ct Light Pink Morganite, Oval, Vs

0.54Ct Light Pink Morganite, Oval, Vs

5.9 x 4.5 mm

$ 27.00

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0.63Ct Rose Pink Tone Spinel, Cushion, Vs

0.63Ct Rose Pink Tone Spinel, Cushion, Vs

5.1 x 4.5 mm

$ 37.80

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12.20Ctw Clear White Topaz, Cushion, Vs

12.20Ctw Clear White Topaz, Cushion, Vs

12 x 10 mm (calibrated)

$ 97.60

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0.27Ct Very Light Pink Morganite, Round, Vs-Si

0.27Ct Very Light Pink Morganite, Round, Vs-Si

4.5 mm (calibrated)

$ 13.50

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6.70Ct Coral Pink Morganite, Oval, Transparent

6.70Ct Coral Pink Morganite, Oval, Transparent

15.8 x 10.1 mm

$ 80.40

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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 Medium Purple Spinel, Oval, Vs

1.16Ct Medium Purple Spinel, Oval, Vs

7.2 x 5.7 mm

$ 157.08

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0.18Ctw L Diamond, Round, Vvs-Vs

0.18Ctw L Diamond, Round, Vvs-Vs

2.8 mm (calibrated)

$ 352.45

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0.04Ct Black Diamond, Round, Opaque

0.04Ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 16.50

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0.30Ct Light Aqua Blue Aquamarine, Oval, Vs-Si

0.30Ct Light Aqua Blue Aquamarine, Oval, Vs-Si

5 x 3.8 mm

$ 50.40

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4.85Ct Very Light Golden-Brown Rutile Topaz, Oval, Transparent

4.85Ct Very Light Golden-Brown Rutile Topaz, Oval, Transparent

11.5 x 9.4 mm

$ 121.25

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1.95Ctw White Topaz, Oval, Vvs-Vs
Topaz Product Video (640040)

1.95Ctw White Topaz, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 16.38

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1.45Ct Light Purple Spinel, Oval, Vs

1.45Ct Light Purple Spinel, Oval, Vs

6.7 x 6.3 mm

$ 174.14

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9.16Ct Mossy Gray Green Aquamarine, Oval, Translucent

9.16Ct Mossy Gray Green Aquamarine, Oval, Translucent

15.6 x 12.7 mm

$ 80.61

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1.25Ct Light Purple-Pink Spinel, Cushion, Vvs-Vs

1.25Ct Light Purple-Pink Spinel, Cushion, Vvs-Vs

6.5 x 5.9 mm

$ 99.00

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1.62Ctw Multicolor Andalusite, Oval, Vs

1.62Ctw Multicolor Andalusite, Oval, Vs

5 x 3 mm (calibrated)

$ 104.27

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14.55Ctw Black Spinel, Cushion, Opaque

14.55Ctw Black Spinel, Cushion, Opaque

12 x 10 mm (calibrated)

$ 96.04

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10.58Ct Light Blue Aquamarine, Baguette, Vvs
Aquamarine Product Video (467812)

10.58Ct Light Blue Aquamarine, Baguette, Vvs

17.5 x 9.7 mm

$ 2,285.28

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1.51Ct Light Pinkish Purple Spinel, Cushion, Vvs-Vs

1.51Ct Light Pinkish Purple Spinel, Cushion, Vvs-Vs

6.8 x 6.5 mm

$ 124.38

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7.83Ctw White Topaz, Square, Vvs-Vs

7.83Ctw White Topaz, Square, Vvs-Vs

5 x 5 mm (calibrated)

$ 75.97

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1.26Ct Lemon Yellow Chrysoberyl, Marquise, Vvs
Chrysoberyl Product Video (366321)

1.26Ct Lemon Yellow Chrysoberyl, Marquise, Vvs

10.5 x 4.9 mm

$ 160.92

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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

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.

Posted By HVeeder in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love how easy the site is to use. Really love that the pictures are of actual product.

Posted By LeAnn in January, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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