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Black Gemstones

Explore our collection of natural black gemstones, perfect for bold, elegant, and modern jewelry designs.

Black Gemstones Weight
Black Gemstones Size
Black Gemstones Clarity
Black Gemstones Price

Size Explained

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For Example: 6-7
For Example: 8-9
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8.12ctw Black Onyx, Oval, Opaque

8.12ctw Black Onyx, Oval, Opaque

13 x 11 mm (calibrated)

$ 16.18

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8.46ct Black Nuummite, Oval, Opaque

8.46ct Black Nuummite, Oval, Opaque

16 x 12 mm (calibrated)

$ 37.33

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13.74ct Black Tourmaline, Oval, Opaque

13.74ct Black Tourmaline, Oval, Opaque

17.1 x 13.9 mm

$ 68.43

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1.24ct Black Onyx, Round, Opaque

1.24ct Black Onyx, Round, Opaque

6.5 mm (calibrated)

$ 2.47

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3.70ct Black Star Sapphire, Oval, Opaque

3.70ct Black Star Sapphire, Oval, Opaque

10.4 x 8.3 mm

$ 66.33

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16.29ct Black Nuummite, Emerald Cut, Opaque
Nuummite Product Video (626628)

16.29ct Black Nuummite, Emerald Cut, Opaque

17.7 x 11.9 mm

$ 70.86

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26.87ctw Black Spinel, Oval, Opaque

26.87ctw Black Spinel, Oval, Opaque

18 x 13 mm (calibrated)

$ 88.31

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7.36ct Black Tourmaline, Oval, Opaque

7.36ct Black Tourmaline, Oval, Opaque

13.4 x 11.2 mm

$ 36.65

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14.50ctw Black Spinel, Cushion, Opaque

14.50ctw Black Spinel, Cushion, Opaque

12 x 10 mm (calibrated)

$ 79.43

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2.16ctw Black Onyx, Round, Opaque

2.16ctw Black Onyx, Round, Opaque

5.5 mm (calibrated)

$ 4.30

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14.66ctw Black Spinel, Heart, Opaque

14.66ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 87.64

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4.42ct Black Star Diopside, Oval, Opaque

4.42ct Black Star Diopside, Oval, Opaque

11 x 9 mm (calibrated)

$ 18.34

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45.27ct Black Obsidian, Square, Opaque

45.27ct Black Obsidian, Square, Opaque

22.7 x 22.4 mm

$ 37.57

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5.80ct Black Onyx, Pear Shape, Opaque

5.80ct Black Onyx, Pear Shape, Opaque

16 x 12 mm (calibrated)

$ 4.81

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8.64ctw Black Onyx, Heart, Opaque

8.64ctw Black Onyx, Heart, Opaque

10.5 x 10.3 mm

$ 8.61

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9.78ct Black Tourmaline, Emerald Cut, Opaque

9.78ct Black Tourmaline, Emerald Cut, Opaque

15 x 10 mm (calibrated)

$ 48.70

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12.44ctw Black Spinel, Round, Opaque

12.44ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 38.70

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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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3.64ct Black Star Sapphire, Pear Shape, Opaque

3.64ct Black Star Sapphire, Pear Shape, Opaque

10.1 x 7.5 mm

$ 65.25

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26.45ct Black Nuummite, Emerald Cut, Opaque
Nuummite Product Video (630317)

26.45ct Black Nuummite, Emerald Cut, Opaque

18.9 x 16.9 mm

$ 116.18

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12.42ctw Black Spinel, Oval, Opaque

12.42ctw Black Spinel, Oval, Opaque

14 x 10 mm (calibrated)

$ 47.63

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2.31ctw Black Onyx, Round, Opaque

2.31ctw Black Onyx, Round, Opaque

5.5 mm (calibrated)

$ 4.60

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4.16ct Black Onyx, Heart, Opaque

4.16ct Black Onyx, Heart, Opaque

10.4 x 10.3 mm

$ 4.14

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8.17ct Black Tourmaline, Emerald Cut, Opaque

8.17ct Black Tourmaline, Emerald Cut, Opaque

17.3 x 7.3 mm

$ 40.69

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Why Buy Black Gemstones from GemSelect?

Natural Black Gemstones

Our black gemstones are 100% natural and carefully selected for their deep color and quality. From classic onyx to rare black spinel, these stones offer timeless appeal for any jewelry project.

Black Gemstones Online

Buy black gemstones online at GemSelect with confidence. We offer a wide range of loose black gems in various shapes, sizes, and price points, all with detailed descriptions and secure worldwide shipping.

Loose Black Gemstones for Jewelry and Collecting

Popular Black Stones

Popular black gemstones include onyx, black spinel, black sapphire, and tourmaline. Each stone offers a unique look, from glossy opaque finishes to brilliant faceted sparkle.

Black Gemstones for Jewelry

Black gemstones are a favorite for modern and classic jewelry. Their neutral color pairs well with any metal, making them ideal for rings, earrings, pendants, and men’s jewelry.

Faceted Black Gems

Faceted black gemstones provide subtle brilliance and depth. These stones are cut to maximize light reflection, offering a refined and polished look for high-end jewelry designs.

Black Cabochon Stones

Black cabochons feature smooth, domed surfaces that highlight the richness of their color. They are perfect for bold statement pieces and vintage-inspired jewelry.

Wholesale Black Gemstones

We offer wholesale black gemstones for jewelers and designers. Purchase in bulk and enjoy competitive pricing on a wide selection of calibrated and free-size stones.

Meaning of Black Gemstones

Black gemstones are often associated with strength, protection, and grounding. They are popular choices for those seeking a bold, elegant look with symbolic meaning.

Learn more about gemstone properties and characteristics on our Gemstone Information Pages.

FAQs

What are the most popular black gemstones?

Popular black gemstones include onyx, black spinel, black sapphire, and black tourmaline. Each offers different durability, brilliance, and price ranges.

Are black gemstones natural?

Yes, many black gemstones are natural. Some may be treated to enhance color, and all treatments are fully disclosed for transparency.

Are black gemstones suitable for everyday jewelry?

Many black gemstones, such as sapphire and spinel, are durable enough for daily wear, while softer stones like onyx are better suited for occasional use.

What metal pairs best with black gemstones?

Black gemstones pair well with all metals, including white gold, yellow gold, rose gold, and silver. The contrast creates a bold and elegant appearance.

Can I buy black gemstones in calibrated sizes?

Yes, we offer calibrated black gemstones in standard sizes, making them ideal for ready-made jewelry settings and consistent designs.

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

Easy and functional

Posted By Dessa in March, 2026
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Overall Rating -> 8 star ratings

It was fine

Posted By Na in April, 2026
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Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
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Overall Rating -> 10 star ratings

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
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Overall Rating -> 10 star ratings

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate
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