+44 20 351 466 05
+49 89 1222 893 0


About RENÉSIM and its history

About the jewellery designer René Sim Lacaze and how it all began

RENÉSIM is Europe's first online jeweller in the exclusive sector. Find out about RENÉSIM, its philosophy and the origins of its name. What is the history of the company? Find out more about the vision of the two founders and Managing Directors, Maximilian Hemmerle & Georg Schmidt-Sailer, and how it all started. René Sim Lacaze, Maximilian Hemmerle's grandfather and a world-famous jewellery designer of the 20th century, has today given his name to the exclusive online jeweller RENÉSIM.


Find out about the background of RENÉSIM as a company, its philosophy and the origins of the name 'RENÉSIM'.


How the online jeweller was established: More about the vision of the two founders and Managing Directors of RENÉSIM, Maximilian Hemmerle & Georg Schmidt-Sailer.


Find out more about the history of the jewellery designer Maximilian Hemmerle, his father Franz Hemmerle and his world-famous grandfather René Sim Lacaze: jewellery design as a family tradition! René Sim Lacaze's name lives on today in RENÉSIM, the luxury online jeweller, founded by his grandson Maximilian Hemmerle and business partner Georg Schmidt-Sailer.


Click here to go to the section Design by Franz & Maximilian Hemmerle and discover more about jewellery design by Franz & Maximilian Hemmerle.

Coques et Poules by René Sim Lacaze, 1957

Multi-coloured sphere ear clip by Franz Hemmerle, 1980

Coqs et Poules: Design sketch for Cock and Hen clips by René Sim Lacaze, 1957 Multi-coloured sphere ear clip in white gold with diamonds, sapphires, rubies and emeralds, sketch by Franz Hemmerle, 1980


You may also be interested in the following:

Interested in gemstones and diamonds? Find out more about precious stones and the diamond - king of gems.

Are you seeking quality diamond rings? Choose from our Prêt-à-Porter Collection or use our Ring Configurator.

Are you looking for loose diamonds as investments or for jewellery? Buy loose brilliants or diamonds at RENÉSIM.

Do you know the history of the engagement ring? Explore our interesting information about engagements and weddings.


About RenéSim Service Ring Sizes Newsletter Press Jobs Terms and Conditions Privacy Policy Credits and Legal Notice

renesim GmbH

Branch office (appointment only):
16 Hanover Square, Mayfair
W1S 1HT London, United Kingdom
T +44 20 351 466 05

Amiraplatz 1, D-80333 Munich
T +49 89 1222 893 0

Hours Mon - Fri 8 am - 6 pm


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As an online jeweller, RenéSim combines the benefits of a modern online-based business model with 180 years of family-run traditional craftsmanship in the jewellery industry. Gemstones such as diamonds are the central focus at RenéSim; we supply high-quality, thoroughly individual pieces such as engagement rings in addition to loose diamonds. We offer unique diamond post earrings, diamond rings, memory rings, engagement rings and much more. Consult the jewellery experts at RenéSim!

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