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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
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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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2.32ct Red Almandine Garnet, Oval, VS

2.32ct Red Almandine Garnet, Oval, VS

9 x 7 mm (calibrated)

$ 86.65

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4.02ctw Violet Amethyst, Oval, VVS-VS

4.02ctw Violet Amethyst, Oval, VVS-VS

6 x 4 mm (calibrated)

$ 22.02

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0.23ct Pink Morganite, Round, VVS-VS

0.23ct Pink Morganite, Round, VVS-VS

4.5 mm (calibrated)

$ 9.55

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12.76ct White Rainbow Moonstone, Pear Shape, Translucent

12.76ct White Rainbow Moonstone, Pear Shape, Translucent

22.8 x 12.8 mm

$ 88.96

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13.45ct Brown Star Sunstone, Oval, Opaque

13.45ct Brown Star Sunstone, Oval, Opaque

16 x 12 mm (calibrated)

$ 111.64

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3.22ctw Red Pyrope Garnet, Square, VS

3.22ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 24.69

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0.49ct Yellow Citrine, Cushion, VVS-VS

0.49ct Yellow Citrine, Cushion, VVS-VS

5 x 5 mm (calibrated)

$ 3.42

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0.71ct Green Tsavorite Garnet, Oval, VS-SI
Tsavorite Garnet Product Video (715315)

0.71ct Green Tsavorite Garnet, Oval, VS-SI

7 x 5 mm (calibrated)

$ 282.86

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3.44ct Yellow Citrine, Pear Shape, VVS-VS

3.44ct Yellow Citrine, Pear Shape, VVS-VS

12 x 10 mm (calibrated)

$ 21.60

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7.02ct Violet Amethyst, Pear Shape, VVS-VS

7.02ct Violet Amethyst, Pear Shape, VVS-VS

16 x 12 mm (calibrated)

$ 55.53

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28.50ct Blue Chalcedony, Cushion, Opaque

28.50ct Blue Chalcedony, Cushion, Opaque

24.4 x 21.8 mm

$ 70.97

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1.45ct Multicolor Opal, Oval, Transparent

1.45ct Multicolor Opal, Oval, Transparent

10 x 8 mm (calibrated)

$ 36.11

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2.31ctw Red Pyrope Garnet, Marquise, VVS-VS

2.31ctw Red Pyrope Garnet, Marquise, VVS-VS

10.1 x 5.1 mm

$ 20.25

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0.65ct Pink Spinel, Cushion, VVS-VS

0.65ct Pink Spinel, Cushion, VVS-VS

5.3 x 4.6 mm

$ 45.32

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2.56ctw Green Tourmaline, Oval, VS

2.56ctw Green Tourmaline, Oval, VS

5.9 x 4.5 mm

$ 98.16

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3.07ct Multicolor Opal, Oval, Transparent

3.07ct Multicolor Opal, Oval, Transparent

13 x 10.2 mm

$ 77.21

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9.38ct Brown Smoky Quartz, Emerald Cut, VVS

9.38ct Brown Smoky Quartz, Emerald Cut, VVS

13 x 13 mm (calibrated)

$ 18.39

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1.59ct Pink Morganite, Round, VS

1.59ct Pink Morganite, Round, VS

7.5 mm (calibrated)

$ 121.94

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45.34ct Yellow Obsidian, Pear Shape, Opaque
Obsidian Product Video (391485)

45.34ct Yellow Obsidian, Pear Shape, Opaque

38.7 x 24.1 mm

$ 49.67

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23.28ct Green Serpentine, Oval, Translucent

23.28ct Green Serpentine, Oval, Translucent

23.3 x 15.9 mm

$ 49.85

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25.05ct Brown Jasper, Fancy, Opaque

25.05ct Brown Jasper, Fancy, Opaque

40.4 x 12.4 mm

$ 38.43

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37.20ct Green Uvarovite Garnet Drusy, Fancy, Opaque

37.20ct Green Uvarovite Garnet Drusy, Fancy, Opaque

26.5 x 18.5 mm

$ 55.58

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11.51ct Violet Amethyst, Cushion, VVS

11.51ct Violet Amethyst, Cushion, VVS

18 x 13 mm (calibrated)

$ 91.72

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1.54ctw Yellow Citrine, Heart, VVS-VS

1.54ctw Yellow Citrine, Heart, VVS-VS

6 x 6 mm (calibrated)

$ 10.74

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

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