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

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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0.07ct Black Diamond, Round, Opaque

2.5 mm (calibrated)

$ 33.87

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0.05ct Black Diamond, Round, Opaque

2.3 mm (calibrated)

$ 17.11

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0.03ct Black Diamond, Round, Opaque

1.9 mm

$ 8.36

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0.04ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 13.70

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0.05ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 17.11

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0.09ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 26.15

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0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 15.94

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0.02ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 15.94

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0.32ct Black Diamond, Square, Opaque

3.3 x 3.2 mm

$ 159.36

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0.42ct Black Diamond, Square, Opaque

3.8 x 3.7 mm

$ 209.16

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0.04ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 13.70

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0.16ct Black Diamond, Square, Opaque

2.7 x 2.7 mm

$ 79.68

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0.27ct Black Diamond, Square, Opaque

3 x 3 mm (calibrated)

$ 134.46

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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0.03ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 8.56

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0.13ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 64.74

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0.10ct Black Diamond, Round, Opaque

2.7 mm (calibrated)

$ 27.15

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0.34ct Black Diamond, Square, Opaque

3.3 x 3.2 mm

$ 141.10

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0.07ct Black Diamond, Square, Opaque

2 x 1.9 mm

$ 34.86

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0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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0.03ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 10.27

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0.07ct Black Diamond, Round, Opaque

2.4 mm (calibrated)

$ 23.96

View Gem

0.04ct Black Diamond, Square, Opaque

1.8 x 1.8 mm

$ 19.92

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
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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

Easy to use website

Posted By Mel in February, 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

Overall Rating -> 8

Good prices

Posted By TRM in October, 2025

Source: Bizrate

Overall Rating -> 10

My current project is something BLUE . Opal earrings with matching tennis bracelet for her wedding. The opals and sixty two sapphires VVS & VS are AMAZINGLY BEAUTIFUL. The private jewelers were impressed by the clarity and inclusion free of the sapphires . I want to say thank you for the High quality sapphires that I purchased for my daughtera's wedding.

Posted By My real name Dean or Wandering about in May, 2026

Source: Bizrate

Overall Rating -> 10

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025

Source: Bizrate

Overall Rating -> 10

The stones are very nice.

Posted By Mvk in August, 2025

Source: Bizrate

→ View All GemSelect Reviews on Bizrate