About Bonas

Bonas is the world’s longest established diamond brokerage and consultancy firm. More recently, it has also become the largest global independent diamond and gemstone tender and auction house.

From its position at the forefront of value chain consulting, Bonas is able to help shape the future prosperity and sustainability of the diamond and gemstone industries.

The firm is proud to count many of the world’s most important diamantaires as clients, who between them produce a significant part of the global polished diamond output.

A fifth generation, family-owned firm, Bonas combines stability in a shifting industry with the expertise and agility to anticipate and embrace change.

52

Sale Events Hosted
in 2023

12

Direct-From-Mine
Productions

over 7

Million Cts Sold in
2023 (All Gemstones)