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Upcoming

03
13
Feb
February 2025
Tender
SWY-2501
Stornoway logo

Stornoway

ORIGIN: Canada

Rough Diamonds

Antwerp viewings

Closing:
14 February 2025 3pm

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

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Sale Events Hosted
in 2023

12

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Direct-From-Mine
Productions

over 7

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Million Cts Sold in
2023 (All Gemstones)

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Services

Tender & Auction Sales

Regularly organising diamond and gemstone sales on behalf of publicly-listed and private mining companies, as well as private sellers.

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Value Chain Consulting

Industry reporting and consulting across the diamond and gemstone pipelines.

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De Beers Relationship Management

Assisting clients in optimising direct rough diamond supplies and commercial opportunities with De Beers Group of Companies.

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PROUD MEMBER OF : wjinitiative2030 originalluxury naturaldiamonds worlddiamondcouncil