What are loose black diamonds?

Loose black diamonds are individual gemstones that are not set in any jewelry. These include natural black diamonds, raw black diamonds, polished black diamonds, and even fancy color diamonds, offering flexibility for custom jewelry designs.

Are your black diamonds certified?

Yes, we offer certified black diamonds that meet international quality standards. Our certified loose diamonds are ideal for both personal use and investment purposes.

What shapes and cuts are available for black diamonds?

We provide a wide range of cuts, including round black diamonds, princess-cut black diamonds, cushion-cut black diamonds, oval black diamonds, and brilliant-cut black diamonds. These shapes cater to various design preferences and jewelry styles.

Are your loose black diamonds conflict-free?

Yes, all our loose black diamonds, including natural and AAA-grade black diamonds, are conflict-free. We prioritize ethical sourcing to ensure peace of mind for our customers.

Do you offer wholesale loose black diamonds?

Absolutely! We specialize in wholesale black diamonds, including loose fancy black diamonds and black diamonds for setting. These are perfect for jewelers, designers, and retailers.

What is the difference between raw black diamonds and polished black diamonds?

Raw black diamonds are uncut and untreated stones in their natural form, while polished black diamonds are expertly cut and finished to enhance their brilliance. Both options are available in our collection.

Can I use loose black diamonds for custom jewelry?

Yes, loose black diamonds are perfect for custom jewelry designs. You can choose from various styles like natural black diamonds or fancy color diamonds to create unique rings, necklaces, or other pieces.

Are investment-grade black diamonds available?

Yes, we offer investment-grade black diamonds that are carefully selected for their quality and long-term value. These include certified loose diamonds and AAA-grade black diamonds.

How can I buy black diamonds online?

You can browse our collection of loose black diamonds, certified black diamonds, and wholesale black diamonds through our online store. Our process is simple, secure, and designed to meet your specific needs.

Why should I choose loose black diamonds over pre-set options?

Loose black diamonds allow you to personalize your jewelry and choose specific shapes, cuts, and sizes. Whether it's round black diamonds or cushion-cut black diamonds, they provide unmatched versatility and creativity.

Loose Black Diamonds for Sale - Certified, Natural, AAA-Grade Stones, Conflict-Free Wholesale black diamonds

Diamond

Black Diamond Weight

Black Diamond Size

Black Diamond Clarity

Black Diamond Price

Size Explained

Choose Size or Size Range

For Example: 6-7

For Example: 8-9

Bi-color

Black Black Diamond

Blue

Brown

Golden

Gray

Green

Multicolor

Orange

Pink

Purple

Red

Turquoise

Violet

White

Yellow

Single

Pairs

Lots

Faceted

Cabochons

Clear All

0.11ct Black Diamond, Round, Opaque

2.9 mm (calibrated)

$ 31.28

View Gem

0.03ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 23.90

View Gem

0.29ctw Black Diamond, Square, Opaque

2.5 x 2.4 mm

$ 144.42

View Gem

0.07ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 33.87

View Gem

0.12ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 41.08

View Gem

0.23ctw Black Diamond, Round, Opaque

3 mm (calibrated)

$ 91.18

View Gem

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.28

View Gem

0.32ct Black Diamond, Square, Opaque

3.3 x 3.2 mm

$ 159.36

View Gem

0.15ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 74.70

View Gem

0.03ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 10.27

View Gem

0.05ct Black Diamond, Round, Opaque

2.3 mm (calibrated)

$ 17.11

View Gem

0.06ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 29.03

View Gem

0.23ct Black Diamond, Square, Opaque

2.9 x 2.9 mm

$ 114.54

View Gem

0.13ct Black Diamond, Square, Opaque

2.6 x 2.5 mm

$ 51.88

View Gem

0.05ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 13.57

View Gem

0.10ct Black Diamond, Round, Opaque

2.7 mm (calibrated)

$ 27.15

View Gem

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

View Gem

0.52ct Black Diamond, Round, Opaque

4.5 mm (calibrated)

$ 414.34

View Gem

0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 15.94

View Gem

0.09ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 30.81

View Gem

0.11ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 54.78

View Gem

0.06ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 29.03

View Gem

1.06ct Black Diamond, Square, Opaque

5.4 x 5.2 mm

$ 603.86

View Gem

0.18ct Black Diamond, Square, Opaque

2.7 x 2.6 mm

$ 89.64

View Gem

« 1 2 3

...

8 »

Choose Page

1 - 15

Why Buy Black Diamond from GemSelect?

Trusted Worldwide Since 2003
Supplying natural gemstones to jewelers and collectors in 120+ countries
Verified natural gemstones
View All GemSelect Reviews on Bizrate
Secure checkout and insured worldwide delivery
30-day returns and satisfaction guarantee

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9

I've made several purchases over the last 8 years and I've never been less than happy with any of them.

Posted By Jess in July, 2026

Source: Bizrate

Overall Rating -> 7

Could not get it to work 25 times.

Posted By Dock in July, 2026

Source: Bizrate

Overall Rating -> 10

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026

Source: Bizrate

Overall Rating -> 10

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026

Source: Bizrate

Overall Rating -> 9

Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

Posted By Amman in May, 2026

Source: Bizrate

Overall Rating -> 10

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026

Source: Bizrate

→ View All GemSelect Reviews on Bizrate