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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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3.10ctw White Rainbow Moonstone, Square, Transparent/Translucent

3.10ctw White Rainbow Moonstone, Square, Transparent/Translucent

3 x 3 mm (calibrated)

$ 49.08

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1.52ct Yellow Beryl, Oval, VS

1.52ct Yellow Beryl, Oval, VS

9.1 x 6.7 mm

$ 36.34

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2.23ct Brown Smoky Quartz, Oval, VVS

2.23ct Brown Smoky Quartz, Oval, VVS

9.6 x 7.7 mm

$ 15.55

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2.30ct Green Peridot, Cushion, VS

2.30ct Green Peridot, Cushion, VS

7.8 x 7 mm

$ 90.57

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3.27ctw Yellow Citrine, Pear Shape, VS

3.27ctw Yellow Citrine, Pear Shape, VS

8 x 5 mm (calibrated)

$ 21.50

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1.60ct Multicolor Pietersite, Round, Opaque

1.60ct Multicolor Pietersite, Round, Opaque

7.5 mm (calibrated)

$ 3.78

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4.42ct Pink Strawberry Quartz, Oval, Translucent

4.42ct Pink Strawberry Quartz, Oval, Translucent

12 x 10 mm (calibrated)

$ 52.83

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36.49ct Multicolor Labradorite, Fancy, Opaque

36.49ct Multicolor Labradorite, Fancy, Opaque

42.4 x 10.4 mm

$ 10.91

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0.93ctw Green Peridot, Oval, Transparent

0.93ctw Green Peridot, Oval, Transparent

6 x 4 mm (calibrated)

$ 16.67

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16.40ct Violet Amethyst, Oval, IF
Amethyst Product Video (745404)

16.40ct Violet Amethyst, Oval, IF

20 x 15 mm (calibrated)

$ 108.90

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5.58ct Green Quartz Cat'S Eye, Oval, Opaque

5.58ct Green Quartz Cat'S Eye, Oval, Opaque

10.7 x 10.2 mm

$ 18.33

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4.68ct Green Apatite, Emerald Cut, VS

4.68ct Green Apatite, Emerald Cut, VS

9 x 9 mm (calibrated)

$ 190.49

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1.49ct Pink Tourmaline, Round, VS
Tourmaline Product Video (730324)

1.49ct Pink Tourmaline, Round, VS

6.5 mm (calibrated)

$ 207.77

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24.85ct Pink Rose Quartz, Oval, Transparent

24.85ct Pink Rose Quartz, Oval, Transparent

20 x 15 mm (calibrated)

$ 32.67

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25.40ct Black Tourmaline, Cushion, Opaque

25.40ct Black Tourmaline, Cushion, Opaque

21.2 x 16.5 mm

$ 126.49

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62.92ctw Multicolor Fluorite, Oval, Transparent
Fluorite Product Video (744516)

62.92ctw Multicolor Fluorite, Oval, Transparent

35.9 x 14.3 mm

$ 261.12

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1.24ct Red Pyrope Garnet, Marquise, VVS-VS

1.24ct Red Pyrope Garnet, Marquise, VVS-VS

9.9 x 4.9 mm

$ 10.86

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2.26ctw Yellow Sphene, Oval, Transparent

2.26ctw Yellow Sphene, Oval, Transparent

6.5 x 5.4 mm

$ 11.25

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1.91ct Red Coral, Oval, Opaque

1.91ct Red Coral, Oval, Opaque

12.3 x 5 mm

$ 313.89

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39.14ct Brown Tiger'S Eye, Oval, Opaque

39.14ct Brown Tiger'S Eye, Oval, Opaque

31.4 x 21.7 mm

$ 18.01

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43.40ct Violet Amethyst, Oval, VVS
Amethyst Product Video (751361)

43.40ct Violet Amethyst, Oval, VVS

26.2 x 17.1 mm

$ 288.18

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1.27ct Pink Strawberry Quartz, Oval, Transparent

1.27ct Pink Strawberry Quartz, Oval, Transparent

8.1 x 6.3 mm

$ 6.34

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2.15ctw Yellow Citrine, Square, VVS-VS

2.15ctw Yellow Citrine, Square, VVS-VS

6 x 6 mm (calibrated)

$ 14.99

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3.04ct Multicolor Labradorite, Baguette, Translucent

3.04ct Multicolor Labradorite, Baguette, Translucent

9 x 7 mm (calibrated)

$ 4.18

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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!

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Had a great experience and the prices are great

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Overall Rating -> 10 star ratings

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 2025
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Posted By Matthew K. in May, 2026
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Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
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