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Untreated Gemstones

Browse our selection of untreated gemstones featuring natural color, clarity and beauty without enhancements.

Untreated Gemstones Weight
Untreated Gemstones Size
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Yellow Untreated Gemstones
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2.08ct Yellow Citrine, Trillion, Transparent

2.08ct Yellow Citrine, Trillion, Transparent

9 x 9 mm (calibrated)

$ 14.50

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21.92ct Gray Hematite, Square, Opaque

21.92ct Gray Hematite, Square, Opaque

15 x 15 mm (calibrated)

$ 21.37

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13.93ct Multicolor Jasper, Pear Shape, Opaque

13.93ct Multicolor Jasper, Pear Shape, Opaque

23.4 x 17.5 mm

$ 11.51

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2.27ctw Green Demantoid Garnet, Oval, VS

2.27ctw Green Demantoid Garnet, Oval, VS

6 x 4 mm (calibrated)

$ 248.70

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2.44ctw Red Pyrope Garnet, Marquise, VVS-VS

2.44ctw Red Pyrope Garnet, Marquise, VVS-VS

10.2 x 5 mm

$ 21.38

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3.08ctw White Topaz, Cushion, VVS-VS

3.08ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 16.87

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0.69ct Green Sphene, Oval, Transparent

0.69ct Green Sphene, Oval, Transparent

5.6 x 4.7 mm

$ 3.44

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0.61ct Green Tourmaline, Round, Transparent

0.61ct Green Tourmaline, Round, Transparent

5 mm (calibrated)

$ 12.15

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1.19ct Multicolor Opal, Oval, Translucent

1.19ct Multicolor Opal, Oval, Translucent

9 x 7 mm (calibrated)

$ 29.63

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1.64ctw Red Pyrope Garnet, Square, VVS-VS

1.64ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 12.58

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4.78ct Brown Smoky Quartz, Round, VVS-VS

4.78ct Brown Smoky Quartz, Round, VVS-VS

12 mm (calibrated)

$ 7.86

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13.78ctw Multicolor Jasper, Pear Shape, Opaque

13.78ctw Multicolor Jasper, Pear Shape, Opaque

23.6 x 13.9 mm

$ 19.26

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0.64ct Red Pyrope Garnet, Heart, VS

0.64ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 15.94

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6.74ct Brown Smoky Quartz, Pear Shape, VVS-VS

6.74ct Brown Smoky Quartz, Pear Shape, VVS-VS

14.9 x 11 mm

$ 22.15

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6.05ct Violet Chalcedony, Cushion, Translucent

6.05ct Violet Chalcedony, Cushion, Translucent

12 x 12 mm (calibrated)

$ 22.60

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5.86ct Violet Amethyst, Cushion, VVS

5.86ct Violet Amethyst, Cushion, VVS

15.1 x 9.1 mm

$ 40.85

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40.51ct Multicolor Jasper, Oval, Opaque

40.51ct Multicolor Jasper, Oval, Opaque

35.2 x 23.3 mm

$ 25.02

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0.43ct Yellow Citrine, Heart, VVS

0.43ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 2.86

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6.47ct Pink Kunzite, Emerald Cut, VVS-VS

6.47ct Pink Kunzite, Emerald Cut, VVS-VS

14.4 x 7.8 mm

$ 161.10

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9.65ct Blue Color-Change Fluorite, Round, VS

9.65ct Blue Color-Change Fluorite, Round, VS

14 mm (calibrated)

$ 220.27

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8.82ctw Orange Moonstone, Round, Translucent

8.82ctw Orange Moonstone, Round, Translucent

11 mm (calibrated)

$ 17.66

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7.06ct Multicolor Fire Agate, Fancy, Opaque

7.06ct Multicolor Fire Agate, Fancy, Opaque

14.2 x 10.7 mm

$ 54.28

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0.57ct Orange Clinohumite, Oval, SI

0.57ct Orange Clinohumite, Oval, SI

6.5 x 4.5 mm

$ 28.39

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2.95ctw Multicolor Andalusite, Oval, VS

2.95ctw Multicolor Andalusite, Oval, VS

6 x 4 mm (calibrated)

$ 158.17

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Why Buy Untreated Gemstones from GemSelect?

Natural Untreated Gemstones

Our untreated gemstones are completely natural and have not undergone any enhancement processes. These gems display their original color and clarity as formed in nature, making them highly valued by collectors, jewelers, and gemstone enthusiasts.

Buy Untreated Gemstones Online

At GemSelect you can easily shop untreated gemstones online with confidence. Our inventory includes carefully sourced loose gemstones from around the world, with full transparency regarding treatments and gem origins.

Natural Untreated Loose Gemstones

Why Choose Untreated Gems?

Untreated gems are prized because they remain exactly as nature created them. Without heat or chemical treatments, these stones offer rarity and authenticity that many collectors and jewelry designers prefer.

Unheated Sapphire and Ruby

Some of the most sought-after untreated gemstones include unheated sapphire and ruby. These rare stones retain their natural color and are highly valued due to the absence of heat treatment commonly used to enhance corundum.

Gemstone Authenticity and Transparency

Every gemstone at GemSelect comes with clear treatment disclosure. When purchasing untreated stones, buyers can be confident they are receiving authentic gems that have not been altered by heat or other enhancement methods.

Untreated Gems for Custom Jewelry

Natural untreated gemstones are perfect for custom jewelry pieces. Their unique appearance ensures every ring, pendant, or pair of earrings features a one-of-a-kind gemstone created by nature.

Rare and Collectible Gemstones

Because many gemstones are routinely treated, truly untreated examples can be relatively rare. Collectors often seek untreated stones because they represent the most natural state of a gemstone.

Learn more about gemstone treatments and natural gem formation on our Gemstone Treatment Guide.

FAQs

What are untreated gemstones?

Untreated gemstones are natural gems that have not been enhanced with heat, chemicals, irradiation, or other treatments. They retain their original appearance as formed in nature.

Are untreated gemstones more valuable?

In many cases untreated gemstones are more valuable because they are rarer than treated stones. Natural color without enhancement is highly prized by collectors and investors.

How can I tell if a gemstone is untreated?

Gemstone treatment is typically determined through gemological testing. Reputable sellers like GemSelect clearly disclose whether a stone is untreated or has received any enhancements.

Which gemstones are commonly untreated?

Some gemstones frequently found untreated include garnet, spinel, peridot, and certain sapphires. However, many gem types may be treated depending on their origin and quality.

Are untreated gemstones suitable for jewelry?

Yes, untreated gemstones can be excellent for jewelry depending on their hardness and durability. Popular choices include sapphire, ruby, spinel, and garnet.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

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