X
Gemstone Search
90,000+ Happy Customers
20+ Years In Business
Call Us Mon–Fri 8am–5pm

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

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

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black Black Gemstones
Blue
Brown
Golden
Gray
Green
Multicolor
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Single
Pairs
Lots
Faceted
Cabochons
Clear All
2.06ctw Black Onyx, Round, Opaque

2.06ctw Black Onyx, Round, Opaque

6.5 mm (calibrated)

$ 4.10

View Gem
4.30ct Black Star Sapphire, Oval, Opaque

4.30ct Black Star Sapphire, Oval, Opaque

10 x 7 mm (calibrated)

$ 77.09

View Gem
20.28ct Black Tourmaline, Oval, Opaque

20.28ct Black Tourmaline, Oval, Opaque

19.1 x 16 mm

$ 72.11

View Gem
0.04ct Black Diamond, Round, Opaque

0.04ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 18.13

View Gem
0.24ct Black Diamond, Square, Opaque

0.24ct Black Diamond, Square, Opaque

3.2 x 2.9 mm

$ 119.52

View Gem
3.20ctw Black Onyx, Round, Opaque

3.20ctw Black Onyx, Round, Opaque

7 mm (calibrated)

$ 6.37

View Gem
28.23ctw Black Spinel, Baguette, Opaque

28.23ctw Black Spinel, Baguette, Opaque

20.2 x 10.2 mm

$ 84.35

View Gem
4.06ct Black Onyx, Oval, Opaque

4.06ct Black Onyx, Oval, Opaque

13 x 11 mm (calibrated)

$ 8.08

View Gem
8.65ct Black Star Sapphire, Oval, Opaque
Star Sapphire Product Video (682967)

8.65ct Black Star Sapphire, Oval, Opaque

12.4 x 10.5 mm

$ 172.31

View Gem
14.70ct Black Nuummite, Oval, Opaque
Nuummite Product Video (645483)

14.70ct Black Nuummite, Oval, Opaque

20.5 x 13.5 mm

$ 60.32

View Gem
31.37ct Black Obsidian, Oval, Opaque

31.37ct Black Obsidian, Oval, Opaque

29.2 x 19.9 mm

$ 28.64

View Gem
27.19ctw Black Spinel, Fancy, Opaque

27.19ctw Black Spinel, Fancy, Opaque

18.2 x 11.8 mm

$ 148.95

View Gem
14.00ctw Black Spinel, Heart, Opaque

14.00ctw Black Spinel, Heart, Opaque

12 x 12 mm (calibrated)

$ 76.69

View Gem
0.85ct Black Diamond, Round, Opaque
Diamond Product Video (668693)

0.85ct Black Diamond, Round, Opaque

5.5 mm (calibrated)

$ 677.28

View Gem
8.67ctw Black Onyx, Heart, Opaque

8.67ctw Black Onyx, Heart, Opaque

10.5 x 10.3 mm

$ 7.20

View Gem
20.03ctw Black Onyx, Pear Shape, Opaque

20.03ctw Black Onyx, Pear Shape, Opaque

18 x 13 mm (calibrated)

$ 19.95

View Gem
37.54ct Black Feather Pyrite, Cushion, Opaque

37.54ct Black Feather Pyrite, Cushion, Opaque

27 x 20 mm (calibrated)

$ 29.29

View Gem
24.70ct Black Nuummite, Oval, Opaque

24.70ct Black Nuummite, Oval, Opaque

23.6 x 16.2 mm

$ 103.38

View Gem
6.60ct Black Tourmaline, Emerald Cut, Opaque

6.60ct Black Tourmaline, Emerald Cut, Opaque

17.5 x 7 mm

$ 32.87

View Gem
2.89ctw Black Onyx, Round, Opaque

2.89ctw Black Onyx, Round, Opaque

7 mm (calibrated)

$ 5.76

View Gem
26.37ct Black Obsidian, Pear Shape, Opaque

26.37ct Black Obsidian, Pear Shape, Opaque

31.2 x 23.1 mm

$ 23.12

View Gem
2.84ctw Black Onyx, Round, Opaque

2.84ctw Black Onyx, Round, Opaque

7 mm (calibrated)

$ 4.71

View Gem
9.56ctw Black Onyx, Cushion, Opaque

9.56ctw Black Onyx, Cushion, Opaque

11 x 11 mm (calibrated)

$ 9.52

View Gem
8.51ct Black Onyx, Pear Shape, Opaque

8.51ct Black Onyx, Pear Shape, Opaque

16.8 x 11.6 mm

$ 8.47

View Gem

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

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'

Posted By CJ in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My experience was done with ease

Posted By Barb in October, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image