Welcome to A.GUL KG

Source: A. GUL KG

Why diamonds from GUL

Established in 1967, A.Gul KG is a German market leader and a top European diamantaire who has built an impeccable reputation for reliability, honesty, and integrity in providing an end-to-end service. We are fully committed to providing the best value for our customers according to the highest quality standards and always at competitive prices.

We are here to add value

A.Gul KG put customer satisfaction and retention always in the first place. As a Business-to-business 'one stop' diamantaire our purpose is to add value across the supply chain and guide our customers toward making optimal purchasing decisions. With a large international base of long-term customers from leading jewelry manufacturers and watchmakers to ultra-net-worth individuals and financial institutions, we offer a wide range of services.


Source: A. GUL KG

Diamond Education: 4 C's

The 4 C's of Diamond Quality is the universal system for assessing the quality of any diamond worldwide. Starting to be developed in the early 1940s, the creation of the Diamond 4Cs meant two very important things: diamond quality could be communicated in a universal language, and customers all over the world could gain confidence by knowing exactly what they were about to acquire.

More information could be found in our Diamond Education guide

carbon neutral


Blog post
2021 SEP

A strong team

Since the second quarter of last year, Alexander David Gul has been a member of the management board of the Pforzheim-based diamond wholesaler.

Blog post
2021 JAN

Ice diamonds

Interest in sustainably and ethically soursed diamonds is growing. Eitan Gul from A.Gul KG now offers diamonds from Canada.