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

0.16ct Black Diamond, Square, Opaque

2.7 x 2.5 mm

$ 79.68

View Gem

0.10ct Black Diamond, Round, Opaque

2.8 mm (calibrated)

$ 34.23

View Gem

0.04ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 13.70

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0.32ct Black Diamond, Square, Opaque

3.3 x 3.1 mm

$ 132.80

View Gem

0.68ct Black Diamond, Square, Opaque

4.2 x 4.1 mm

$ 338.64

View Gem

0.05ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 16.28

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0.08ct Black Diamond, Round, Opaque

2.6 mm (calibrated)

$ 27.38

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0.29ct Black Diamond, Square, Opaque

3.2 x 3.2 mm

$ 144.42

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0.15ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 71.36

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0.17ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 80.88

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0.07ctw Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 20.34

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0.27ctw Black Diamond, Round, Opaque

3 mm (calibrated)

$ 128.44

View Gem

0.19ctw Black Diamond, Square, Opaque

2.1 x 2.1 mm

$ 94.62

View Gem

0.13ctw Black Diamond, Square, Opaque

2.2 x 2.1 mm

$ 64.74

View Gem

0.05ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 24.20

View Gem

0.04ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 31.87

View Gem

0.05ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 17.11

View Gem

0.08ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 63.74

View Gem

0.06ct Black Diamond, Round, Opaque

2.3 mm (calibrated)

$ 20.53

View Gem

0.22ct Black Diamond, Square, Opaque

2.9 x 2.8 mm

$ 109.56

View Gem

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

View Gem

0.20ct Black Diamond, Square, Opaque

2.8 x 2.8 mm

$ 99.60

View Gem

0.11ct Black Diamond, Round, Opaque

2.7 mm (calibrated)

$ 37.65

View Gem

0.27ct Black Diamond, Square, Opaque

3.2 x 3.1 mm

$ 134.46

View Gem

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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
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GemSelect Certified Store Reviews

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

Overall Rating -> 10

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026

Source: Bizrate

Overall Rating -> 10

hassle free experience.

Posted By Jhidron in October, 2025

Source: Bizrate

Overall Rating -> 10

Very good

Posted By Niska in August, 2025

Source: Bizrate

Overall Rating -> 10

I was able to find what I've been looking for.

Posted By Tree Dog in April, 2026

Source: Bizrate

Overall Rating -> 10

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

Posted By Tim in January, 2026

Source: Bizrate

Overall Rating -> 10

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026

Source: Bizrate

→ View All GemSelect Reviews on Bizrate