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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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1.05ct Yellow Beryl, Oval, VVS-VS

1.05ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 20.92

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2.06ctw Yellow Morganite, Oval, VS

2.06ctw Yellow Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 81.07

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2.99ctw White Topaz, Cushion, VVS-VS

2.99ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 16.38

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0.26ct Pink Morganite, Round, VS

0.26ct Pink Morganite, Round, VS

4.5 mm (calibrated)

$ 10.79

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1.19ct Yellow Beryl, Pear Shape, VVS-VS

1.19ct Yellow Beryl, Pear Shape, VVS-VS

9.1 x 6.3 mm

$ 23.70

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1.20ct Yellow Chrysoberyl, Pear Shape, VVS

1.20ct Yellow Chrysoberyl, Pear Shape, VVS

8 x 5.3 mm

$ 139.84

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 16.28

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1.16ct Yellow Beryl, Cushion, VVS

1.16ct Yellow Beryl, Cushion, VVS

8 x 6 mm (calibrated)

$ 27.73

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1.33ct Yellow Beryl, Trillion, VS

1.33ct Yellow Beryl, Trillion, VS

8 x 8 mm (calibrated)

$ 31.79

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7.44ctw Black Spinel, Round, Opaque

7.44ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 28.53

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0.07ct Black Diamond, Round, Opaque

0.07ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 33.87

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0.03ct White Diamond, Round, VVS

0.03ct White Diamond, Round, VVS

2 mm (calibrated)

$ 68.48

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0.06ct White Diamond, Marquise, VVS

0.06ct White Diamond, Marquise, VVS

4 x 1.9 mm

$ 208.54

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0.68ct Black Diamond, Square, Opaque
Diamond Product Video (678135)

0.68ct Black Diamond, Square, Opaque

4.2 x 4.1 mm

$ 338.64

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1.18ct Yellow Beryl, Oval, VS

1.18ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 22.53

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0.02ct Black Diamond, Round, Opaque

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.28

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7.24ct Pink Morganite, Round, Translucent

7.24ct Pink Morganite, Round, Translucent

12 mm (calibrated)

$ 78.53

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1.33ct Yellow Beryl, Oval, VVS

1.33ct Yellow Beryl, Oval, VVS

9 x 6.7 mm

$ 26.49

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0.58ct Pink Spinel, Cushion, VS

0.58ct Pink Spinel, Cushion, VS

5.2 x 4.8 mm

$ 48.14

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0.65ct Yellow Beryl, Oval, VVS

0.65ct Yellow Beryl, Oval, VVS

7 x 5 mm (calibrated)

$ 16.19

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2.61ct Yellow Rutile Topaz, Emerald Cut, Transparent

2.61ct Yellow Rutile Topaz, Emerald Cut, Transparent

8.9 x 7.6 mm

$ 54.16

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0.95ct Pink Spinel, Cushion, VS

0.95ct Pink Spinel, Cushion, VS

5.9 x 5.5 mm

$ 70.97

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3.13ct Brown Rutile Topaz, Pear Shape, Transparent

3.13ct Brown Rutile Topaz, Pear Shape, Transparent

12.1 x 7.5 mm

$ 64.95

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0.77ct Pink Spinel, Oval, VS

0.77ct Pink Spinel, Oval, VS

5.9 x 5.3 mm

$ 63.91

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 -> 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

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
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

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience was done with ease

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