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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
Single
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18.22ctw Multicolor Labradorite, Pear Shape, Translucent

18.22ctw Multicolor Labradorite, Pear Shape, Translucent

20 x 15 mm (calibrated)

$ 39.92

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1.15ct Purple Spinel, Cushion, VVS-VS

1.15ct Purple Spinel, Cushion, VVS-VS

6.4 x 5.1 mm

$ 75.60

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19.93ct White Dendritic Agate, Marquise, Translucent

19.93ct White Dendritic Agate, Marquise, Translucent

42.2 x 13.7 mm

$ 39.70

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3.67ctw Red Pyrope Garnet, Marquise, VVS-VS

3.67ctw Red Pyrope Garnet, Marquise, VVS-VS

12.1 x 6.1 mm

$ 40.33

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53.84ct Multicolor Agate Geode, Fancy, Opaque
Agate Geode Product Video (391886)

53.84ct Multicolor Agate Geode, Fancy, Opaque

33.3 x 28.8 mm

$ 53.63

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2.11ctw Blue Kyanite, Oval, SI

2.11ctw Blue Kyanite, Oval, SI

7 x 5 mm (calibrated)

$ 43.92

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24.04ctw Brown Tiger'S Eye Matrix, Sphere / Ball, Opaque

24.04ctw Brown Tiger'S Eye Matrix, Sphere / Ball, Opaque

12 mm (calibrated)

$ 12.51

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2.01ct Red Almandine Garnet, Oval, VVS-VS

2.01ct Red Almandine Garnet, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 75.07

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5.14ctw Yellow Citrine, Pear Shape, VS

5.14ctw Yellow Citrine, Pear Shape, VS

8 x 5 mm (calibrated)

$ 28.15

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2.22ctw Red Pyrope Garnet, Marquise, VVS-VS

2.22ctw Red Pyrope Garnet, Marquise, VVS-VS

10 x 5.1 mm

$ 19.46

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3.66ct Multicolor Tourmaline, Fancy, Transparent

3.66ct Multicolor Tourmaline, Fancy, Transparent

14 x 9.4 mm

$ 109.80

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1.36ct Orange Sphalerite, Emerald Cut, SI-I1

1.36ct Orange Sphalerite, Emerald Cut, SI-I1

5.9 x 5.6 mm

$ 67.73

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9.78ct Pink Rose Quartz, Square, Transparent

9.78ct Pink Rose Quartz, Square, Transparent

12 x 12 mm (calibrated)

$ 53.58

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4.49ctw Red Pyrope Garnet, Square, VS

4.49ctw Red Pyrope Garnet, Square, VS

4 x 4 mm (calibrated)

$ 34.43

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5.91ct Pink Strawberry Quartz, Oval, Translucent

5.91ct Pink Strawberry Quartz, Oval, Translucent

14 x 10 mm (calibrated)

$ 35.62

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0.97ct Orange Moonstone, Pear Shape, Transparent

0.97ct Orange Moonstone, Pear Shape, Transparent

9 x 6 mm (calibrated)

$ 1.93

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38.41ct Bi-Color Ametrine, Oval, VVS

38.41ct Bi-Color Ametrine, Oval, VVS

27 x 20 mm (calibrated)

$ 210.41

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4.55ct Orange Sunstone, Oval, Translucent

4.55ct Orange Sunstone, Oval, Translucent

12 x 10 mm (calibrated)

$ 27.17

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2.23ct Purple Rhodolite Garnet, Oval, VVS
Rhodolite Garnet Product Video (735226)

2.23ct Purple Rhodolite Garnet, Oval, VVS

8.1 x 7.2 mm

$ 88.84

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60.66ct Green Amazonite, Square, Opaque

60.66ct Green Amazonite, Square, Opaque

24.2 x 24.1 mm

$ 35.24

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2.88ctw Yellow Citrine, Trillion, VVS

2.88ctw Yellow Citrine, Trillion, VVS

8 x 8 mm (calibrated)

$ 20.08

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1.87ctw Yellow Morganite, Pear Shape, VS

1.87ctw Yellow Morganite, Pear Shape, VS

8 x 6 mm (calibrated)

$ 122.92

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1.82ctw Green Peridot, Oval, VVS-VS

1.82ctw Green Peridot, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 25.38

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7.45ct Multicolor Agate, Oval, Opaque

7.45ct Multicolor Agate, Oval, Opaque

12.7 x 11.4 mm

$ 12.62

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

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Recomendado Totalmente Los Productos Se Entregaron A Tiempo

Posted By Alexis in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

This is the first time I have used this site. I was dissatisfied with the quality of gems and supplies elsewhere and decided to try GemSelect. They are awesome! I was thrilled to see the variety and the great web performance. There was the ability to search for information as well as gems. Things like the clarity rating system and caret weight of the gems. I have always loved making things and I have just started to make jewelry as a business. However I have never made a ring before and have always wanted to. On GemSelect I was able to find good quality gems to use in my creations. I am so glad the website is so easy to use. Thank you GemSelect.

Posted By PickyShopper in April, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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