Discerning diamond buyers worldwide seeking natural, ethical diamonds trust KGK and understand our advantages:
Integrated supply pipeline
To ensure complete supply chain control, KGK only carry natural diamonds and track each stone from rough to finished product.
KGK began distributing diamonds in 1969 and has manufactured finished diamonds since 1986. Our global diamond operations are based in Antwerp.
Quality and choice
We carry an exceptional range of natural colourless and coloured stones in every popular size, shade and shape.
Diamonds direct from source
Our diamond buyers have long experience in evaluating and grading uncut stones. Their impeccable judgement has a positive effect throughout our value chain. Our natural, ethical stones are processed in KGK manufacturing units in:
- South Africa
The KGK Group is among the handful of global companies who are preferred buyers of De Beers, Alrosa and Rio Tinto.
is a trademark used under licence from The De Beers Group of Companies.
The is a trademark used under license by PJSC ALROSA
is a trademark of Rio Tinto London Limited, used under licence.
Diamond production innovation
In pursuit of superior products KGK continually explores and apply new innovations to our diamond production process, including:
DiaMark™ laser marking
Provenance for every stone.
Galaxy™ diamond mapping
Advanced inclusion mapping technology for rough diamonds.
Water jet laser cutting
State-of-the-art stone cutting.
The volumes we process translate into efficiencies of scale that delivers advantages throughout the value cycle.
Efficient distribution network
The KGK Group operates a sophisticated secure global distribution infrastructure brings our wholesale diamonds to:
KGK has a significant presence at many of the world’s leading diamond and jewellery trade events.