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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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3.35ct Black Onyx, Trillion, Opaque

3.35ct Black Onyx, Trillion, Opaque

9.9 x 9.3 mm

$ 3.34

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5.32ct Black Star Diopside, Oval, Opaque

5.32ct Black Star Diopside, Oval, Opaque

11 x 9 mm (calibrated)

$ 22.08

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27.92ct Black Tourmaline, Emerald Cut, Opaque

27.92ct Black Tourmaline, Emerald Cut, Opaque

45.7 x 8.9 mm

$ 139.04

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32.77ct Black Feather Pyrite, Oval, Opaque

32.77ct Black Feather Pyrite, Oval, Opaque

28.2 x 19.3 mm

$ 25.56

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37.90ct Black Feather Pyrite, Oval, Opaque

37.90ct Black Feather Pyrite, Oval, Opaque

30 x 22 mm (calibrated)

$ 29.57

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6.58ct Black Star Diopside, Oval, Opaque

6.58ct Black Star Diopside, Oval, Opaque

12 x 10 mm (calibrated)

$ 32.77

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 10.27

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2.11ct Black Star Diopside, Oval, Opaque

2.11ct Black Star Diopside, Oval, Opaque

8 x 6 mm (calibrated)

$ 10.51

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13.95ctw Black Spinel, Heart, Opaque

13.95ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 76.43

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0.20ct Black Diamond, Round, Opaque

0.20ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 95.15

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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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21.84ct Black Onyx, Oval, Opaque

21.84ct Black Onyx, Oval, Opaque

22 x 15.9 mm

$ 97.89

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8.10ctw Black Star Diopside, Oval, Opaque

8.10ctw Black Star Diopside, Oval, Opaque

11 x 9 mm (calibrated)

$ 33.62

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37.25ct Black Obsidian, Cushion, Opaque

37.25ct Black Obsidian, Cushion, Opaque

25.5 x 23.7 mm

$ 40.82

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14.47ctw Black Spinel, Round, Opaque

14.47ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 47.56

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14.00ctw Black Spinel, Heart, Opaque

14.00ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 76.69

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0.12ct Black Diamond, Round, Opaque

0.12ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 57.09

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0.08ctw Black Diamond, Round, Opaque

0.08ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 63.74

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12.24ctw Black Star Diopside, Oval, Opaque

12.24ctw Black Star Diopside, Oval, Opaque

11 x 9 mm (calibrated)

$ 50.80

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0.05ct Black Diamond, Round, Opaque

0.05ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 39.84

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18.03ct Black Obsidian, Oval, Opaque

18.03ct Black Obsidian, Oval, Opaque

24.7 x 16.8 mm

$ 29.64

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11.74ct Black Star Diopside, Round, Opaque

11.74ct Black Star Diopside, Round, Opaque

12 mm (calibrated)

$ 58.47

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14.65ctw Black Spinel, Round, Opaque

14.65ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.58

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20.57ctw Black Onyx, Pear Shape, Opaque

20.57ctw Black Onyx, Pear Shape, Opaque

18 x 13 mm (calibrated)

$ 20.48

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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

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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