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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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1.61ct Yellow Citrine, Flower Cut, Transparent

1.61ct Yellow Citrine, Flower Cut, Transparent

7.3 x 7.2 mm

$ 12.35

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37.71ct Green Malachite, Oval, Opaque

37.71ct Green Malachite, Oval, Opaque

30.5 x 20.3 mm

$ 37.56

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4.69ct Green Jade, Oval, Opaque

4.69ct Green Jade, Oval, Opaque

12.6 x 10.3 mm

$ 9.35

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2.93ct Orange Moonstone, Marquise, Translucent

2.93ct Orange Moonstone, Marquise, Translucent

14 x 7 mm (calibrated)

$ 5.83

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5.78ct Yellow Citrine, Pear Shape, VVS

5.78ct Yellow Citrine, Pear Shape, VVS

18.2 x 9.8 mm

$ 38.00

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0.50ct Orange Fire Opal, Oval, Transparent

0.50ct Orange Fire Opal, Oval, Transparent

6.9 x 5.7 mm

$ 14.43

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1.14ctw Red Pyrope Garnet, Pear Shape, VVS-VS

1.14ctw Red Pyrope Garnet, Pear Shape, VVS-VS

7.1 x 4.7 mm

$ 9.08

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0.69ct Green Tourmaline, Emerald Cut, VVS

0.69ct Green Tourmaline, Emerald Cut, VVS

4.8 x 4.6 mm

$ 28.64

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12.73ct Yellow Apatite, Emerald Cut, VS
Apatite Product Video (407384)

12.73ct Yellow Apatite, Emerald Cut, VS

17 x 10.8 mm

$ 348.68

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3.84ct Yellow Citrine, Emerald Cut, VVS-VS

3.84ct Yellow Citrine, Emerald Cut, VVS-VS

11 x 9 mm (calibrated)

$ 29.45

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4.81ct Turquoise Fluorite, Pear Shape, Transparent

4.81ct Turquoise Fluorite, Pear Shape, Transparent

11.8 x 9.3 mm

$ 19.79

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3.02ct Pink Kunzite, Emerald Cut, VS

3.02ct Pink Kunzite, Emerald Cut, VS

7.8 x 7.2 mm

$ 75.20

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2.92ctw Green Peridot, Round, VVS-VS

2.92ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 47.99

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2.98ct Pink Tourmaline, Emerald Cut, VVS-VS

2.98ct Pink Tourmaline, Emerald Cut, VVS-VS

8.9 x 6.5 mm

$ 225.28

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16.86ct Multicolor Ruby-Zoisite, Baguette, Opaque

16.86ct Multicolor Ruby-Zoisite, Baguette, Opaque

19.1 x 11.9 mm

$ 30.11

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1.01ct Yellow Zircon, Oval, VVS-VS

1.01ct Yellow Zircon, Oval, VVS-VS

6 x 4.8 mm

$ 25.15

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1.13ct Red Tourmaline, Oval, Transparent

1.13ct Red Tourmaline, Oval, Transparent

7.4 x 5.8 mm

$ 18.72

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1.45ctw Red Rhodolite Garnet, Square, VS

1.45ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.70

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1.51ct Pink Tourmaline, Oval, Transparent

1.51ct Pink Tourmaline, Oval, Transparent

8 x 6 mm (calibrated)

$ 27.57

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2.16ct White Moonstone, Oval, Translucent

2.16ct White Moonstone, Oval, Translucent

10 x 8 mm (calibrated)

$ 23.66

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0.54ct Blue Kyanite, Round, SI

0.54ct Blue Kyanite, Round, SI

4.3 mm

$ 13.45

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1.90ct Orange Hessonite Garnet, Oval, VS-SI

1.90ct Orange Hessonite Garnet, Oval, VS-SI

8.3 x 6.9 mm

$ 34.11

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10.66ct Black Tourmaline, Emerald Cut, Opaque

10.66ct Black Tourmaline, Emerald Cut, Opaque

17.2 x 9 mm

$ 53.09

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60.38ct Black Tourmaline, Emerald Cut, Opaque
Tourmaline Product Video (702025)

60.38ct Black Tourmaline, Emerald Cut, Opaque

40.2 x 14.4 mm

$ 300.69

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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 start use it more amd more and love it

Posted By Ben danino in August, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My whole experience is great.

Posted By Ghs in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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