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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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9.30ct Pink Rose Quartz, Emerald Cut, Transparent

9.30ct Pink Rose Quartz, Emerald Cut, Transparent

12 x 12 mm (calibrated)

$ 50.95

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0.36ct Pink Morganite, Oval, VS-SI

0.36ct Pink Morganite, Oval, VS-SI

5.9 x 4.3 mm

$ 14.94

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1.69ct Orange Hessonite Garnet, Oval, VS

1.69ct Orange Hessonite Garnet, Oval, VS

8.3 x 6.7 mm

$ 25.20

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1.88ct Orange Hessonite Garnet, Cushion, VS-SI

1.88ct Orange Hessonite Garnet, Cushion, VS-SI

7 x 7 mm (calibrated)

$ 28.02

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1.48ct Yellow Citrine, Emerald Cut, VVS

1.48ct Yellow Citrine, Emerald Cut, VVS

12.2 x 4.3 mm

$ 11.79

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1.88ct Pink Tourmaline, Emerald Cut, VS
Tourmaline Product Video (560854)

1.88ct Pink Tourmaline, Emerald Cut, VS

8.5 x 5.2 mm

$ 135.95

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17.61ct Gray Jadeite, Oval, Translucent

17.61ct Gray Jadeite, Oval, Translucent

22 x 13.8 mm

$ 28.93

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0.93ct Green Peridot, Emerald Cut, VVS

0.93ct Green Peridot, Emerald Cut, VVS

7 x 5 mm (calibrated)

$ 14.82

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32.34ct Yellow Calcite, Oval, Translucent

32.34ct Yellow Calcite, Oval, Translucent

35.6 x 18.4 mm

$ 22.22

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1.46ct Yellow Beryl, Round, VVS

1.46ct Yellow Beryl, Round, VVS

7 mm (calibrated)

$ 31.99

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14.47ct Violet Amethyst, Round, VVS-VS

14.47ct Violet Amethyst, Round, VVS-VS

16 mm (calibrated)

$ 100.89

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2.80ctw Yellow Citrine, Emerald Cut, VVS-VS

2.80ctw Yellow Citrine, Emerald Cut, VVS-VS

8 x 6 mm (calibrated)

$ 22.31

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0.12ct Black Diamond, Square, Opaque

0.12ct Black Diamond, Square, Opaque

2.7 x 2.7 mm

$ 59.76

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7.69ct Multicolor Boulder Opal, Oval, Opaque

7.69ct Multicolor Boulder Opal, Oval, Opaque

16 x 12 mm (calibrated)

$ 53.62

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21.43ct Multicolor Jasper, Cushion, Opaque

21.43ct Multicolor Jasper, Cushion, Opaque

22.2 x 18.3 mm

$ 24.65

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1.54ctw White Rainbow Moonstone, Pear Shape, Transparent

1.54ctw White Rainbow Moonstone, Pear Shape, Transparent

5 x 5 mm (calibrated)

$ 28.68

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6.61ct Gray Star Sapphire, Oval, Opaque
Star Sapphire Product Video (470806)

6.61ct Gray Star Sapphire, Oval, Opaque

10 x 10 mm (calibrated)

$ 253.47

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1.35ct Green Peridot, Oval, VS

1.35ct Green Peridot, Oval, VS

8 x 6 mm (calibrated)

$ 14.79

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2.56ct Yellow Citrine, Oval, VVS-VS
Citrine Product Video (435667)

2.56ct Yellow Citrine, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 14.03

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1.86ct Brown Hessonite Garnet, Oval, VS-SI

1.86ct Brown Hessonite Garnet, Oval, VS-SI

8.2 x 6.9 mm

$ 33.41

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0.72ct Blue Kyanite, Round, SI

0.72ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 17.93

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0.83ct Orange Citrine, Oval, VVS-VS

0.83ct Orange Citrine, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 8.27

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2.67ct Multicolor Labradorite, Pear Shape, Translucent

2.67ct Multicolor Labradorite, Pear Shape, Translucent

10 x 7 mm (calibrated)

$ 5.91

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0.83ctw Yellow Citrine, Oval, VS

0.83ctw Yellow Citrine, Oval, VS

6 x 4 mm (calibrated)

$ 5.46

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 always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very pleasant

Posted By Varun in June, 2026
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Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
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Overall Rating -> 10 star ratings

Easy and functional

Posted By Dessa in March, 2026
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Overall Rating -> 10 star ratings

Very good

Posted By Ceil in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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