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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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Black Black Gemstones
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6.82ct Black Star Sapphire, Oval, Opaque

6.82ct Black Star Sapphire, Oval, Opaque

12 x 10 mm (calibrated)

$ 135.85

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13.84ctw Black Spinel, Round, Opaque

13.84ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.48

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19.53ct Black Onyx, Oval, Opaque

19.53ct Black Onyx, Oval, Opaque

25 x 18 mm (calibrated)

$ 38.90

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1.78ct Black Star Diopside, Round, Opaque

1.78ct Black Star Diopside, Round, Opaque

6 mm (calibrated)

$ 8.86

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0.15ct Black Diamond, Round, Opaque

0.15ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 71.36

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6.48ctw Black Onyx, Trillion, Opaque

6.48ctw Black Onyx, Trillion, Opaque

9.9 x 9.4 mm

$ 6.46

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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6.75ct Black Tourmaline, Oval, Opaque

6.75ct Black Tourmaline, Oval, Opaque

12 x 10 mm (calibrated)

$ 33.62

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17.87ct Black Obsidian, Trillion, Opaque

17.87ct Black Obsidian, Trillion, Opaque

24.8 x 20.1 mm

$ 29.37

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0.07ct Black Diamond, Round, Opaque

0.07ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 28.23

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38.41ct Black Feather Pyrite, Pear Shape, Opaque

38.41ct Black Feather Pyrite, Pear Shape, Opaque

34.7 x 23.4 mm

$ 29.97

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14.54ct Black Nuummite, Cushion, Opaque

14.54ct Black Nuummite, Cushion, Opaque

16.3 x 14.3 mm

$ 52.41

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1.99ctw Black Onyx, Round, Opaque

1.99ctw Black Onyx, Round, Opaque

5.5 mm (calibrated)

$ 3.97

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17.60ctw Black Spinel, Heart, Opaque

17.60ctw Black Spinel, Heart, Opaque

13 x 13 mm (calibrated)

$ 57.85

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0.06ct Black Diamond, Round, Opaque

0.06ct Black Diamond, Round, Opaque

2.3 mm (calibrated)

$ 19.54

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7.21ctw Black Spinel, Round, Opaque

7.21ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 23.70

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1.34ct Black Star Diopside, Oval, Opaque

1.34ct Black Star Diopside, Oval, Opaque

8 x 6 mm (calibrated)

$ 6.67

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1.59ct Black Star Diopside, Oval, Opaque

1.59ct Black Star Diopside, Oval, Opaque

8 x 6 mm (calibrated)

$ 7.92

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0.07ct Black Diamond, Round, Opaque

0.07ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 23.96

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6.78ct Black Star Diopside, Oval, Opaque

6.78ct Black Star Diopside, Oval, Opaque

12 x 10 mm (calibrated)

$ 33.76

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13.27ct Black Tourmaline, Emerald Cut, Opaque

13.27ct Black Tourmaline, Emerald Cut, Opaque

18.9 x 9.7 mm

$ 66.08

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9.40ctw Black Spinel, Round, Opaque

9.40ctw Black Spinel, Round, Opaque

10 mm (calibrated)

$ 36.05

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7.96ctw Black Spinel, Round, Opaque

7.96ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 34.88

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80.17ct Black Obsidian, Square, Opaque

80.17ct Black Obsidian, Square, Opaque

25.9 x 25.9 mm

$ 66.54

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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

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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