Our house
The GUIMEL House,
A true diamond dealer


The founders of Maison GUIMEL are passionate diamond merchants, who have traveled the world in search of diamonds and colored stones, with the mission of finding the most beautiful stones for jewelry professionals. This experience of several years in the field allowed them to know and understand the diamond market and colored stones.

In 2017, they created their own company, GUIMEL, to pool their knowledge, their market experiences and their contacts in the various diamond cutters.

As a professional in the diamond market and that of colored stones, Maison GUIMEL will provide you with the best prices for your purchases.

Maison GUIMEL gets its supplies directly from the source, by communicating with the various diamond cutters around the world, thus avoiding intermediaries thanks to the contacts established internationally for many years.

Guillaume LOPEZ, President of GUIMEL, is a Member of the Diamantclub Van Antwerpen, which is the oldest of the four diamond exchanges in Antwerp, a global diamond platform. He acquires this status thanks to his expertise and to his values, such as responsibility and integrity, which are for him the key words of success.

Maison GUIMEL, because of its privileged position on the world diamond market, will be able to advise you perfectly on the characteristics of the stones at the time of purchase, on the stone that will necessarily suit you.

Supporting you in your purchase, from the search for the stone to its delivery, the Maison GUIMEL team will be happy to assist you with any request for a quote. Even for the rarest stones.
Maison GUIMEL, a true diamond dealer


The Founders of Maison GUIMEL are passionate diamond merchants, who have traveled the world in search of diamonds and colored stones, with the mission of finding the most beautiful stones for jewelry professionals. This experience of several years in the field allowed them to know and understand the diamond market and colored stones.

In 2017, they created their own company, GUIMEL, to pool their knowledge, their market experiences and their contacts in the various diamond cutters.

As a professional in the diamond market and that of colored stones, Maison GUIMEL will provide you with the best prices for your purchases. Maison GUIMEL gets its supplies directly from the source, by communicating with the various diamond cutters around the world, thus avoiding intermediaries thanks to the contacts established internationally for many years.

Guillaume LOPEZ, President of GUIMEL, is a Member of the Diamantclub Van Antwerpen, which is the oldest of the four diamond exchanges in Antwerp, a global diamond platform.He acquires this status thanks to his expertise and to his values, such as responsibility and integrity, which are for him the key words of success.

Maison GUIMEL, because of its privileged position on the world diamond market, will be able to advise you perfectly on the characteristics of the stones at the time of purchase, on the stone that will necessarily suit you.

Supporting you in your purchase, researche of the stone until its delivery, the
Maison GUIMEL's team will be happy to help you with any request for a quote. Even for the rarest stones.

Our philosophy

QUALITY
EFFICIENCY
TRUST

Our philosophy

QUALITY
EFFICIENCY
TRUST

Thewordof
President

"Maison GUIMEL aims to become a business model in the diamond and colored gemstones sector, capable of adapting to changes in the market and customer needs.

Our competitiveness results from:
  • The diversification of our sources of supply;
  • The constant desire to improve the quality and scope of our goods and services;
  • Our reputation, our seriousness, our presence and our perfect knowledge of the international market for diamonds and colored stones;
  • The experience and specialization of our collaborators and partners.
It is thanks to this that we can fully satisfy our customers ".
Guillaume LOPEZ
President and co-founder of Maison GUIMEL
Dealer in diamonds and colored stones
Member of Diamantclub van Antwerpen
Member of the World Federation of Diamond Stock Exchanges
Member of the French Association of Gemmology

A word from the President

"Maison GUIMEL aims to become a business model in the diamond and colored gemstones sector, capable of adapting to changes in the market and customer needs.

Our competitiveness results from:
  • The diversification of our sources of supply;
  • The constant desire to improve the quality and scope of our goods and services;
  • Our reputation, our seriousness, our presence and our perfect knowledge of the international market for diamonds and colored stones;
  • The experience and specialization of our employees and partners.
It is thanks to this that nWe can fully satisfy our customers ".
Guillaume LOPEZ
President and co-founder of Maison GUIMEL
Dealer in diamonds and colored stones
Member of Diamantclub van Antwerpen
Member of the World Federation of Diamond Stock Exchanges
Member of the French Association of Gemmology
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