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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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3.42ctw Red Pyrope Garnet, Square, VVS-VS

3.42ctw Red Pyrope Garnet, Square, VVS-VS

4 x 4 mm (calibrated)

$ 26.23

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4.62ct Multicolor Fire Agate, Fancy, Opaque

4.62ct Multicolor Fire Agate, Fancy, Opaque

13 x 9 mm (calibrated)

$ 35.52

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0.44ct Golden Citrine, Marquise, VS

0.44ct Golden Citrine, Marquise, VS

8 x 4 mm (calibrated)

$ 3.96

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7.04ct Violet Amethyst, Pear Shape, Transparent

7.04ct Violet Amethyst, Pear Shape, Transparent

13 x 11 mm (calibrated)

$ 42.07

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39.05ct Gray Hematite, Round, Opaque

39.05ct Gray Hematite, Round, Opaque

21.7 mm

$ 38.08

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87.25ct Yellow Quartz, Pear Shape, VVS
Quartz Product Video (470297)

87.25ct Yellow Quartz, Pear Shape, VVS

31.8 x 25.2 mm

$ 119.49

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0.97ctw Green Peridot, Oval, VS

0.97ctw Green Peridot, Oval, VS

6 x 4 mm (calibrated)

$ 10.62

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0.71ct Pink Tourmaline, Oval, Transparent

0.71ct Pink Tourmaline, Oval, Transparent

6.3 x 4.7 mm

$ 11.76

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31.73ct Green Jadeite, Fancy, Translucent

31.73ct Green Jadeite, Fancy, Translucent

39.8 x 15.9 mm

$ 41.40

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1.80ct Pink Tourmaline, Oval, VVS-VS
Tourmaline Product Video (525632)

1.80ct Pink Tourmaline, Oval, VVS-VS

8 x 7.1 mm

$ 276.09

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5.57ct Multicolor Fire Agate, Pear Shape, Opaque

5.57ct Multicolor Fire Agate, Pear Shape, Opaque

13.5 x 9.7 mm

$ 47.18

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1.10ct Purple Spinel, Pear Shape, VVS

1.10ct Purple Spinel, Pear Shape, VVS

8 x 6 mm (calibrated)

$ 123.34

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26.78ctw Multicolor Coral, Oval, Opaque

26.78ctw Multicolor Coral, Oval, Opaque

20.3 x 12.3 mm

$ 50.75

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1.95ct Brown Tiger'S Eye, Pear Shape, Opaque

1.95ct Brown Tiger'S Eye, Pear Shape, Opaque

10 x 7 mm (calibrated)

$ 1.94

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20.61ctw Multicolor Fluorite, Pear Shape, Transparent
Fluorite Product Video (744503)

20.61ctw Multicolor Fluorite, Pear Shape, Transparent

23.4 x 11.6 mm

$ 85.53

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1.16ct Orange Hessonite Garnet, Oval, VVS-VS

1.16ct Orange Hessonite Garnet, Oval, VVS-VS

7 x 5.8 mm

$ 23.11

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1.78ctw Red Pyrope Garnet, Square, VS

1.78ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.65

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1.21ctw Green Peridot, Oval, Transparent

1.21ctw Green Peridot, Oval, Transparent

6 x 4 mm (calibrated)

$ 21.70

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39.45ct Multicolor Jasper, Pear Shape, Opaque

39.45ct Multicolor Jasper, Pear Shape, Opaque

33.7 x 30.4 mm

$ 24.20

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2.32ctw Pink Strawberry Quartz, Oval, Translucent

2.32ctw Pink Strawberry Quartz, Oval, Translucent

8 x 6 mm (calibrated)

$ 30.49

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0.32ct Black Diamond, Square, Opaque

0.32ct Black Diamond, Square, Opaque

3.3 x 3.1 mm

$ 132.80

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2.67ctw Yellow Golden Beryl, Oval, VS

2.67ctw Yellow Golden Beryl, Oval, VS

9 x 7 mm (calibrated)

$ 58.51

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0.61ct Brown Chocolate Opal, Oval, Opaque

0.61ct Brown Chocolate Opal, Oval, Opaque

7 x 5 mm (calibrated)

$ 18.23

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3.10ct Red Almandine Garnet, Pear Shape, VVS-VS
Almandine Garnet Product Video (742999)

3.10ct Red Almandine Garnet, Pear Shape, VVS-VS

12 x 8 mm (calibrated)

$ 115.79

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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

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Posted By Napoleon in August, 2025
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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.

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Overall Rating -> 10 star ratings

The process was pleasant, I chose to purchase the stone traditional to the month of March as it is the month in which I was born.

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Very good and simple exchange

Posted By Waylon in March, 2026
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