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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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1.22ct Pink Morganite, Pear Shape, VVS-VS

1.22ct Pink Morganite, Pear Shape, VVS-VS

9.7 x 6 mm

$ 133.66

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1.84ct Yellow Beryl, Cushion, VVS

1.84ct Yellow Beryl, Cushion, VVS

9 x 7 mm (calibrated)

$ 40.32

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1.72ct Yellow Beryl, Trillion, VVS

1.72ct Yellow Beryl, Trillion, VVS

9 x 9 mm (calibrated)

$ 37.69

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0.67ct Pink Spinel, Cushion, VS

0.67ct Pink Spinel, Cushion, VS

5.7 x 4.4 mm

$ 38.93

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4.11ct White Topaz, Heart, VVS-VS

4.11ct White Topaz, Heart, VVS-VS

10 x 10 mm (calibrated)

$ 34.11

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0.65ct Yellow Beryl, Oval, VS

0.65ct Yellow Beryl, Oval, VS

7 x 5 mm (calibrated)

$ 12.41

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0.04ct Black Diamond, Round, Opaque

0.04ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 13.70

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0.32ct Pink Morganite, Oval, VVS

0.32ct Pink Morganite, Oval, VVS

5.5 x 3.8 mm

$ 13.28

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1.21ct Purple Spinel, Cushion, VS

1.21ct Purple Spinel, Cushion, VS

6.7 x 5.9 mm

$ 79.05

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2.39ctw Multicolor Andalusite, Round, VS-SI

2.39ctw Multicolor Andalusite, Round, VS-SI

4 mm (calibrated)

$ 117.84

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5.97ct Pink Morganite, Round, Transparent

5.97ct Pink Morganite, Round, Transparent

13 mm (calibrated)

$ 65.40

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3.86ct Pink Morganite, Oval, Transparent

3.86ct Pink Morganite, Oval, Transparent

12 x 9.1 mm

$ 42.29

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1.43ct Yellow Beryl, Oval, VVS

1.43ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 28.49

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2.35ct Yellow Beryl, Round, VVS

2.35ct Yellow Beryl, Round, VVS

9 mm (calibrated)

$ 51.49

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1.66ct Purple Spinel, Cushion, VS

1.66ct Purple Spinel, Cushion, VS

7.1 x 5.6 mm

$ 115.74

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0.06ct White Diamond, Marquise, VVS
Diamond Product Video (740691)

0.06ct White Diamond, Marquise, VVS

4 x 2 mm (calibrated)

$ 208.54

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11.84ctw White Topaz, Oval, VVS-VS

11.84ctw White Topaz, Oval, VVS-VS

12 x 10 mm (calibrated)

$ 78.62

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1.46ct Pink Morganite, Round, VS

1.46ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 56.71

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3.06ctw White Topaz, Cushion, VVS-VS

3.06ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 16.77

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0.66ct Violet Spinel, Cushion, VS

0.66ct Violet Spinel, Cushion, VS

5 x 4.5 mm

$ 46.02

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1.02ct Purple Spinel, Cushion, VS

1.02ct Purple Spinel, Cushion, VS

6 x 6 mm (calibrated)

$ 121.91

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1.05ct Red Spinel, Cushion, VS

1.05ct Red Spinel, Cushion, VS

6.1 x 5.6 mm

$ 113.30

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1.13ct Purple Spinel, Cushion, VS

1.13ct Purple Spinel, Cushion, VS

6.4 x 5.8 mm

$ 78.78

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1.25ct Yellow Golden Beryl, Oval, VS

1.25ct Yellow Golden Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 34.25

View Gem
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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

GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'

Posted By CJ in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

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 purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
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
Enlarged Gemstone Image