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Home › Gemstones › Natural Untreated Gemstones

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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1.59ct Yellow Beryl, Cushion, VVS

1.59ct Yellow Beryl, Cushion, VVS

9 x 7 mm (calibrated)

$ 34.84

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2.90ct Brown Rutile Topaz, Pear Shape, Transparent

2.90ct Brown Rutile Topaz, Pear Shape, Transparent

11.6 x 8.5 mm

$ 60.18

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1.47ct Yellow Beryl, Round, VVS

1.47ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 29.28

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1.74ct White Topaz, Marquise, VS

1.74ct White Topaz, Marquise, VS

12 x 5.1 mm

$ 9.53

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1.10ct Purple Spinel, Cushion, VS

1.10ct Purple Spinel, Cushion, VS

6.1 x 5.7 mm

$ 184.26

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1.90ct Yellow Golden Beryl, Round, VVS

1.90ct Yellow Golden Beryl, Round, VVS

8 mm (calibrated)

$ 45.80

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1.04ct Yellow Beryl, Oval, VVS-VS

1.04ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 25.90

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1.07ctw White Topaz, Oval, VVS

1.07ctw White Topaz, Oval, VVS

6.3 x 4.2 mm

$ 7.46

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1.25ct Pink Morganite, Round, VS

1.25ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 48.56

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4.58ct White Topaz, Oval, VVS

4.58ct White Topaz, Oval, VVS

12 x 8 mm (calibrated)

$ 30.11

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1.57ct Yellow Diamond, Emerald Cut, SI
Diamond Product Video (382052)

1.57ct Yellow Diamond, Emerald Cut, SI

6 x 6 mm (calibrated)

$ 3,667.08

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0.22ctw Black Diamond, Square, Opaque

0.22ctw Black Diamond, Square, Opaque

2.3 x 2.2 mm

$ 109.56

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1.11ct Purple Spinel, Cushion, VVS-VS

1.11ct Purple Spinel, Cushion, VVS-VS

6.3 x 6.1 mm

$ 72.97

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2.11ct Yellow Beryl, Oval, VVS-VS

2.11ct Yellow Beryl, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 50.44

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0.58ct Gray Spinel, Cushion, VVS-VS

0.58ct Gray Spinel, Cushion, VVS-VS

5.5 x 4.3 mm

$ 48.14

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4.65ct Yellow Rutile Topaz, Pear Shape, Transparent

4.65ct Yellow Rutile Topaz, Pear Shape, Transparent

14 x 9 mm (calibrated)

$ 96.49

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1.51ct Purple Spinel, Cushion, VVS

1.51ct Purple Spinel, Cushion, VVS

7.5 x 6 mm

$ 258.96

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0.72ct Yellow Beryl, Oval, VS

0.72ct Yellow Beryl, Oval, VS

7 x 5.3 mm

$ 17.93

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3.85ctw Multicolor Andalusite, Round, VS

3.85ctw Multicolor Andalusite, Round, VS

3.2 mm

$ 141.06

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 14.53

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0.98ct Purple Spinel, Cushion, VVS-VS

0.98ct Purple Spinel, Cushion, VVS-VS

6.3 x 4.9 mm

$ 53.68

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3.86ctw Yellow Beryl, Oval, VS

3.86ctw Yellow Beryl, Oval, VS

10 x 8 mm (calibrated)

$ 76.89

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2.15ctw Yellow Beryl, Oval, VVS-VS

2.15ctw Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 42.83

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1.71ct White Topaz, Marquise, VVS-VS

1.71ct White Topaz, Marquise, VVS-VS

12.2 x 5.1 mm

$ 11.92

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

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Fast snd easy to find what I was looking for

Posted By Bawb in May, 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

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate
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