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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
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Black Natural Untreated Gemstones
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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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2.25ctw Red Pyrope Garnet, Marquise, VVS-VS

2.25ctw Red Pyrope Garnet, Marquise, VVS-VS

10 x 5.2 mm

$ 19.72

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0.44ct Violet Amethyst, Emerald Cut, SI

0.44ct Violet Amethyst, Emerald Cut, SI

6 x 4 mm (calibrated)

$ 2.56

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20.63ct Green Bloodstone, Oval, Opaque

20.63ct Green Bloodstone, Oval, Opaque

20.5 x 16.5 mm

$ 30.83

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1.69ctw Blue Kyanite, Round, SI

1.69ctw Blue Kyanite, Round, SI

5.3 mm

$ 42.08

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3.05ctw Brown Tiger'S Eye, Oval, Opaque

3.05ctw Brown Tiger'S Eye, Oval, Opaque

9 x 9 mm (calibrated)

$ 3.04

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1.30ct Orange Hessonite Garnet, Oval, VVS-VS

1.30ct Orange Hessonite Garnet, Oval, VVS-VS

7.5 x 6.1 mm

$ 19.86

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55.77ct Green Amazonite, Pear Shape, Opaque

55.77ct Green Amazonite, Pear Shape, Opaque

38.3 x 27.3 mm

$ 44.44

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1.67ct Pink Tourmaline, Emerald Cut, VVS-VS
Tourmaline Product Video (693530)

1.67ct Pink Tourmaline, Emerald Cut, VVS-VS

8.3 x 5.1 mm

$ 69.31

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5.19ct Turquoise Aquamarine, Oval, Translucent

5.19ct Turquoise Aquamarine, Oval, Translucent

14 x 10 mm (calibrated)

$ 107.69

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0.59ct Orange Citrine, Marquise, VS

0.59ct Orange Citrine, Marquise, VS

8.3 x 4.3 mm

$ 3.53

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26.85ct Multicolor Jasper, Oval, Opaque

26.85ct Multicolor Jasper, Oval, Opaque

32.2 x 21.3 mm

$ 22.06

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5.26ctw Green Prehnite, Oval, Transparent/Translucent

5.26ctw Green Prehnite, Oval, Transparent/Translucent

10 x 8 mm (calibrated)

$ 28.82

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9.69ct Green Maw-Sit-Sit, Oval, Opaque

9.69ct Green Maw-Sit-Sit, Oval, Opaque

14 x 11.2 mm

$ 31.86

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12.80ct Red Strawberry Quartz, Oval, Translucent

12.80ct Red Strawberry Quartz, Oval, Translucent

15.7 x 12.8 mm

$ 98.16

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0.94ctw Orange Citrine, Marquise, VS

0.94ctw Orange Citrine, Marquise, VS

7.9 x 4.1 mm

$ 5.15

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3.37ctw Yellow Citrine, Emerald Cut, VVS-VS

3.37ctw Yellow Citrine, Emerald Cut, VVS-VS

8 x 6 mm (calibrated)

$ 23.41

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24.97ctw Multicolor Fossil Coral, Cushion, Opaque

24.97ctw Multicolor Fossil Coral, Cushion, Opaque

18.2 x 11.5 mm

$ 27.36

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0.90ctw Green Peridot, Pear Shape, VVS-VS

0.90ctw Green Peridot, Pear Shape, VVS-VS

6 x 4 mm (calibrated)

$ 6.91

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2.47ct Orange Hessonite Garnet, Oval, VS-SI

2.47ct Orange Hessonite Garnet, Oval, VS-SI

9 x 7.5 mm

$ 48.71

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5.54ct Orange Spessartite Garnet, Oval, Transparent

5.54ct Orange Spessartite Garnet, Oval, Transparent

10.9 x 9.8 mm

$ 137.95

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2.63ct Yellow Citrine, Oval, VVS

2.63ct Yellow Citrine, Oval, VVS

12 x 8 mm (calibrated)

$ 15.93

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2.87ct Multicolor Labradorite, Round, Translucent

2.87ct Multicolor Labradorite, Round, Translucent

9 mm (calibrated)

$ 6.18

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7.30ct Yellow Rutile Quartz, Pear Shape, Transparent

7.30ct Yellow Rutile Quartz, Pear Shape, Transparent

15.2 x 11 mm

$ 19.83

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0.92ct Orange Hessonite Garnet, Emerald Cut, VS

0.92ct Orange Hessonite Garnet, Emerald Cut, VS

5.3 x 5.3 mm

$ 16.49

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

I have made many purchases from GemSelect over the years, and I have a beautiful collection of jewelry as a result. My purchases have always been exactly as described, and I have enjoyed doing business with you.

Posted By MMM in July, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
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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

Ia've been searching for a source to get my gemstones for awhile now and was very happy to come across this website. Amazing variety for any income.

Posted By Tarah in August, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Maneuvering through the website was easy and enjoyable. I have ordered from GemSelect before and that experience was also pleasant.

Posted By Willow in August, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.

Posted By Atsu in December, 2025
Source: Bizrate
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