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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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5.20ctw White Topaz, Square, VS

5.20ctw White Topaz, Square, VS

3.6 x 3.6 mm

$ 37.89

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1.12ct Purple Spinel, Cushion, VS

1.12ct Purple Spinel, Cushion, VS

7 x 5 mm (calibrated)

$ 78.92

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9.29ct Pink Morganite, Oval, Transparent

9.29ct Pink Morganite, Oval, Transparent

16 x 12 mm (calibrated)

$ 92.53

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0.08ct Black Diamond, Round, Opaque

0.08ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 27.38

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0.71ct Yellow Morganite, Pear Shape, VVS-VS

0.71ct Yellow Morganite, Pear Shape, VVS-VS

8 x 6 mm (calibrated)

$ 31.12

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0.73ct Yellow Beryl, Pear Shape, VVS-VS

0.73ct Yellow Beryl, Pear Shape, VVS-VS

7 x 5 mm (calibrated)

$ 14.54

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1.55ct Pink Morganite, Round, VVS-VS

1.55ct Pink Morganite, Round, VVS-VS

7 mm (calibrated)

$ 50.17

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1.37ct Purple Spinel, Cushion, VVS-VS

1.37ct Purple Spinel, Cushion, VVS-VS

7.5 x 6.4 mm

$ 136.45

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0.14ctw White Diamond, Round, VVS-VS

0.14ctw White Diamond, Round, VVS-VS

2.7 mm (calibrated)

$ 250.28

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2.78ctw White Topaz, Cushion, VVS-VS

2.78ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 15.23

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6.88ctw White Topaz, Round, VS

6.88ctw White Topaz, Round, VS

9 mm (calibrated)

$ 37.69

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0.84ct Purple Spinel, Cushion, VS

0.84ct Purple Spinel, Cushion, VS

5.5 x 5.2 mm

$ 125.50

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11.54ctw Black Spinel, Oval, Opaque

11.54ctw Black Spinel, Oval, Opaque

14 x 10 mm (calibrated)

$ 44.26

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9.28ct Blue Aquamarine, Oval, Translucent

9.28ct Blue Aquamarine, Oval, Translucent

16.5 x 10.8 mm

$ 61.62

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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5.69ct Pink Morganite, Round, Transparent

5.69ct Pink Morganite, Round, Transparent

12 mm (calibrated)

$ 62.34

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2.68ctw White Topaz, Cushion, VVS-VS

2.68ctw White Topaz, Cushion, VVS-VS

4.5 x 4.5 mm

$ 14.68

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2.81ctw White Topaz, Cushion, VVS-VS

2.81ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 15.40

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8.28ctw White Topaz, Square, VS

8.28ctw White Topaz, Square, VS

5 x 5 mm (calibrated)

$ 69.26

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5.90ct White Topaz, Cushion, VVS-VS

5.90ct White Topaz, Cushion, VVS-VS

12 x 10 mm (calibrated)

$ 39.18

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3.04ctw Yellow Beryl, Oval, VVS

3.04ctw Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 72.67

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1.78ctw Multicolor Andalusite, Round, VS

1.78ctw Multicolor Andalusite, Round, VS

3.7 mm

$ 97.51

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1.24ct Pink Morganite, Pear Shape, VVS-VS

1.24ct Pink Morganite, Pear Shape, VVS-VS

12.8 x 5.8 mm

$ 135.85

View Gem
1.07ct Pink Morganite, Round, VS

1.07ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 41.57

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

It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
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

No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

Posted By Orphanboy in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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