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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
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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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10.04ct Green Maw-Sit-Sit, Pear Shape, Opaque

10.04ct Green Maw-Sit-Sit, Pear Shape, Opaque

16 x 12 mm (calibrated)

$ 31.02

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2.06ct Yellow Citrine, Pear Shape, VS

2.06ct Yellow Citrine, Pear Shape, VS

10.9 x 7.4 mm

$ 15.79

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3.19ctw White Topaz, Cushion, VVS-VS

3.19ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 17.48

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582.39ct Yellow Citrine, Cushion, IF
Citrine Product Video (750840)

582.39ct Yellow Citrine, Cushion, IF

80.1 x 37.8 mm

$ 4,833.84

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7.30ctw Pink Strawberry Quartz, Oval, Transparent

7.30ctw Pink Strawberry Quartz, Oval, Transparent

12 x 10 mm (calibrated)

$ 111.97

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1.27ct Yellow Color-Change Diaspore, Baguette, VVS

1.27ct Yellow Color-Change Diaspore, Baguette, VVS

8.3 x 4.4 mm

$ 66.17

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6.08ct Violet Amethyst, Pear Shape, Transparent

6.08ct Violet Amethyst, Pear Shape, Transparent

16.4 x 9.8 mm

$ 36.34

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0.81ct White Sillimanite Cat'S Eye, Oval, Transparent

0.81ct White Sillimanite Cat'S Eye, Oval, Transparent

6 x 4 mm (calibrated)

$ 2.42

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2.92ctw Orange Hessonite Garnet, Emerald Cut, VS

2.92ctw Orange Hessonite Garnet, Emerald Cut, VS

7 x 5 mm (calibrated)

$ 44.62

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4.32ct Multicolor Fire Agate, Fancy, Opaque

4.32ct Multicolor Fire Agate, Fancy, Opaque

13 x 9 mm (calibrated)

$ 33.22

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2.23ct Yellow Citrine, Flower Cut, Transparent

2.23ct Yellow Citrine, Flower Cut, Transparent

8 x 8 mm (calibrated)

$ 17.10

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3.78ctw Multicolor Andalusite, Oval, VS-SI

3.78ctw Multicolor Andalusite, Oval, VS-SI

6 x 4 mm (calibrated)

$ 169.42

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38.76ct Multicolor Jasper, Cushion, Opaque

38.76ct Multicolor Jasper, Cushion, Opaque

30 x 24.5 mm

$ 21.23

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0.47ct Pink Tourmaline, Round, Transparent

0.47ct Pink Tourmaline, Round, Transparent

4.8 mm

$ 18.72

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32.37ct Multicolor Quartz With Marcasite, Oval, Transparent
Quartz With Marcasite Product Video (577735)

32.37ct Multicolor Quartz With Marcasite, Oval, Transparent

24.5 x 18.8 mm

$ 207.11

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3.52ct Yellow Citrine, Oval, VVS-VS

3.52ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 23.14

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18.34ct Multicolor Tiger'S Eye Matrix, Fancy, Opaque

18.34ct Multicolor Tiger'S Eye Matrix, Fancy, Opaque

23.3 x 10.9 mm

$ 18.27

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10.56ct White Dendritic Agate, Pear Shape, Opaque

10.56ct White Dendritic Agate, Pear Shape, Opaque

20 x 15 mm (calibrated)

$ 8.42

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5.07ctw Green Peridot, Oval, VS

5.07ctw Green Peridot, Oval, VS

8 x 6 mm (calibrated)

$ 55.54

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52.86ct Orange Druzy Citrine, Cushion, Opaque

52.86ct Orange Druzy Citrine, Cushion, Opaque

29.9 x 17.1 mm

$ 49.80

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6.60ctw Green Prehnite, Pear Shape, Transparent/Translucent

6.60ctw Green Prehnite, Pear Shape, Transparent/Translucent

10.9 x 7.6 mm

$ 20.25

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1.96ctw Red Pyrope Garnet, Heart, VVS-VS

1.96ctw Red Pyrope Garnet, Heart, VVS-VS

6 x 6 mm (calibrated)

$ 15.03

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1.27ct Purple Spinel, Cushion, VS

1.27ct Purple Spinel, Cushion, VS

6.5 x 5.8 mm

$ 104.36

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1.26ct Multicolor Chocolate Opal, Oval, Translucent

1.26ct Multicolor Chocolate Opal, Oval, Translucent

8 x 6 mm (calibrated)

$ 41.42

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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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Great site for finding specific stones and sizes for individual pieces of jewelry

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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.

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IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

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Overall Rating -> 10 star ratings

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Posted By Kymmie in September, 2025
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