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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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2.96ct Yellow Citrine, Oval, VVS-VS

2.96ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 17.94

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6.97ct Turquoise Hemimorphite Druzy, Fancy, Opaque
Hemimorphite Druzy Product Video (439422)

6.97ct Turquoise Hemimorphite Druzy, Fancy, Opaque

14.2 x 11.5 mm

$ 114.55

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0.48ct Orange Spessartite Garnet, Oval, VS-SI

0.48ct Orange Spessartite Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 14.34

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18.47ctw Multicolor Jasper, Trillion, Opaque

18.47ctw Multicolor Jasper, Trillion, Opaque

19.7 x 16 mm

$ 10.86

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11.43ct Multicolor Ruby-Zoisite, Baguette, Opaque

11.43ct Multicolor Ruby-Zoisite, Baguette, Opaque

15.3 x 11.3 mm

$ 28.47

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1.59ct Violet Amethyst, Marquise, VS

1.59ct Violet Amethyst, Marquise, VS

12 x 6.1 mm

$ 12.19

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0.98ct Yellow Citrine, Marquise, VS

0.98ct Yellow Citrine, Marquise, VS

9.2 x 5.1 mm

$ 7.81

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8.84ct Black Tourmaline, Emerald Cut, Opaque

8.84ct Black Tourmaline, Emerald Cut, Opaque

11.5 x 10.6 mm

$ 44.02

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3.62ct Green Malachite, Oval, Opaque

3.62ct Green Malachite, Oval, Opaque

10 x 8 mm (calibrated)

$ 7.21

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6.32ctw Yellow Rutile Quartz, Pear Shape, Translucent

6.32ctw Yellow Rutile Quartz, Pear Shape, Translucent

10 x 7 mm (calibrated)

$ 17.04

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1.80ct Orange Hessonite Garnet, Cushion, SI

1.80ct Orange Hessonite Garnet, Cushion, SI

7 x 7 mm (calibrated)

$ 33.97

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12.30ctw Violet Amethyst, Oval, Transparent

12.30ctw Violet Amethyst, Oval, Transparent

14 x 10 mm (calibrated)

$ 48.65

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1.93ct Orange Hessonite Garnet, Cushion, VS-SI

1.93ct Orange Hessonite Garnet, Cushion, VS-SI

7 x 7 mm (calibrated)

$ 32.46

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2.40ct White Moonstone, Oval, Translucent

2.40ct White Moonstone, Oval, Translucent

9 x 7 mm (calibrated)

$ 21.03

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2.92ct Pink Strawberry Quartz, Oval, Transparent

2.92ct Pink Strawberry Quartz, Oval, Transparent

10 x 8 mm (calibrated)

$ 21.70

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0.52ct Orange Citrine, Marquise, VS

0.52ct Orange Citrine, Marquise, VS

8 x 4 mm (calibrated)

$ 3.63

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2.04ct Orange Sunstone, Round, Translucent

2.04ct Orange Sunstone, Round, Translucent

8.5 mm (calibrated)

$ 12.20

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2.95ctw Red Pyrope Garnet, Trillion, VS

2.95ctw Red Pyrope Garnet, Trillion, VS

4 x 4 mm (calibrated)

$ 22.63

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1.35ct Pink Tourmaline, Emerald Cut, VS

1.35ct Pink Tourmaline, Emerald Cut, VS

7.6 x 4.8 mm

$ 97.62

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5.03ct Yellow Rutile Quartz, Oval, Transparent

5.03ct Yellow Rutile Quartz, Oval, Transparent

11 x 9 mm (calibrated)

$ 19.28

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10.06ct Green Druzy Variscite, Fancy, Opaque

10.06ct Green Druzy Variscite, Fancy, Opaque

25.7 x 15.2 mm

$ 15.33

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0.84ct Pink Malaya Garnet, Round, VS

0.84ct Pink Malaya Garnet, Round, VS

5.5 mm (calibrated)

$ 36.81

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84.37ct Multicolor Jasper, Cushion, Opaque

84.37ct Multicolor Jasper, Cushion, Opaque

38.4 x 38 mm

$ 51.78

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31.32ct Gray Hematite, Pear Shape, Opaque

31.32ct Gray Hematite, Pear Shape, Opaque

20 x 15 mm (calibrated)

$ 30.54

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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

I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

Posted By Mattick in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
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

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

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