SOURCING ONLY THE BEST

Dianco is recognized as a De Beers Group Sightholder, Alrosa Alliance Member and Rio Tinto Select Diamantaire for the world's largest mines around the world. All our diamonds are hand-selected and polished in-house.

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SIGHTHOLDER OF THE

DE BEERS GROUP

Dianco is a  Sightholder of De Beers Group since 2012. Only a handful of companies that comply with their requirements are privileged enough to be selected to be part of the De Beers Group Sightholder family. They control the second-largest distribution of mined, rough diamonds around the world. 90% of their rough diamonds that come from their mined operations in Canada, South Africa, Namibia, and Botswana are sold to their Sightholders.

As a Sightholder, we receive a consistent and regular supply of their diamonds. About 10 times a year our team heads over to Botswana to inspect the goods before deciding what to buy. We are proud to say that all of the De Beers mines are certified by the Responsible Jewellery Council Code of Practices and are compliant with the De Beers Group Best Practice Principles. Giving our team and our customer's assurance on the integrity and authenticity of the diamonds.

 

SELECT DIAMANTAIRE

RIO TINTO

Dianco has been part of the Rio Tinto Select Diamantaire family since 1985. To be selected, a company must be recognized for their skills in diamond trading, cutting, polishing and marketing. Moreover, the company must promise to comply with the Rio Tinto Diamonds Chain of Custody.

Rio Tinto is the third largest producer of mined, rough diamonds in the world. As a Select Diamantaire, Dianco receives a regular and consistent supply of rough diamonds from their responsibly-mined Diavik Diamond Mine in Canada. 

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ALLIANCE MEMBER

ALROSA

Alrosa is the largest mined, rough diamond supplier in the world. A handful of companies around the world are selected to be an Alrosa Alliance Member. We have been members since 2009. As a member, we receive a consistent supply of rough diamonds from their mines in Russia.

In order to be part of the Alrosa Alliance, a company must comply with the requirements of the Kimberley Process and the System of Warranties of the World Diamond Council. Moreover, a company must maintain a certain standard of business practices, corporate ethics, have the ability to add value to the diamonds, and have a successful distribution network with a significant geographical exposure. Dianco is proud to be recognized as an Alrosa Alliance Member.​

 

THANKS TO OUR ALLEGIANCE WITH THE BEST MINING COMPANIES AROUND THE WORLD.

We have a wide selection of diamonds that fit your need.

OFFICES

ANTWERP
Hoveniersstraat 2, Office 1001,
PO Box 306, 2018,
Antwerpen, Belgium

NEW YORK
15 West, 47 Street
Suite 1303A, NY 10036,
New York, USA

DUBAI
43H Almas Tower,
JLT, PO Box 625820,
Dubai, UAE

HONG KONG
Unit J2, 11F, Kaiser Estate Phase 2
No 51 Man Yue Street, Hunghom,
Kowloon, Hong Kong

SOCIAL

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SHANGHAI
B-706 A, China Diamond Exchange, 
1701 Century Avenue, Pudong, 200122

Shanghai, PRC, China

© 2023 DIANCO | POLICY & PROCEDURE

sightholder diamond trading company