Sara Bennani
Head of department
Knowledgeable about the world of art and auctions thanks to her experience at Artcurial, Sara Bennani has been working in close collaboration with expert Jérôme Lalande for almost five years.
Jérome Lalande
Expert
A certified expert for the Paris Court of Appeal and a member of the French Syndicate of Professional Experts, Jérôme Lalande is internationally recognised for his expertise regarding all Hermès products as well as fine leather goods produced by the big luxury brands. An expert for several auction houses, he has worked with Hermès for over 20 years with regard to their search for vintage pieces.
Clotilde Rafine-Ricard
Head of department
Clotilde Rafine-Ricard has become a specialist in watchmaking through seven year's experience with Romain Réa's team and is also familiar with the world of auctions.
Romain Réa
Expert
The only expert watchmaker recognised by l'Union Française des Experts, and also an expert at the Court of Appeal in Paris, Romain Réa is considered one of the best international experts in watchmaking. He collaborates with the most prestigious watch manufacturers in the world.
Department
Watches
Department
Jewellery
Constance Lauvinerie
Head of department
Passionate about the world of jewellery and having graduated from l'Institut National de Gemmologie as well as HRD Diamonds Grader d'Anvers, Constance Lauvinerie has developed her expertise in antique and designer jewellery in international auction houses and with renowned jewellery houses.
Thierry Stetten
Expert
Thierry Stetten is a certified expert at the Court of Appeal in Paris and a consultant in the consultancy SAS Déchaut-Stetten. He is a member of the Syndicat Français des Experts Proffessionnels en Oeuvres d'art et Objets de Collection. Specialising in jewellery and fine jewellery, he collaborates with the most important auction houses.
Collector Square has three service centers for the care and repair of second hand luxury jewellery, watches, and bags.
These services are reserved for all customers, buyers or sellers, before or after the sale or purchase of an item at Collector Square.
Discover reviews of iconic watch models and luxury bags thanks to nearly 300,000 LuxPrice Index results.
LuxPrice-index, the first tool in the world to reach more than 300,000 results of watch and luxury bag auctions at the major international houses.
LuxPrice-index offers enthusiasts and professionals around the world the trends in the luxury market. Through unique reports created by sector professionals. Luxprice-index delivers the key to buying well and selling well.
Hermes Birkin
Its average price has been multiplied by 3 in 11 years
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Omega Speedmaster
Its average price has been multiplied by 3 in 10 years
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Hermès Constance
Its average price has been multiplied by 10 in 10 years
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Rolex GMT-Master
Its average price was multiplied by 10 between 2003 and 2016
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Anecdotes, advice, insider’s secrets: our experts give you the keys to buying and selling your luxury items successfully
Constance Lauvinerie, a gemologist and head of the Collector Square website jewellery department, reveals the secret to selecting a piece of antique jewellery. or twentieth-century j...
Experts use terms that can be hard for non-specialists to understand. Collector Square seeks to be as specific as possible while remaining easily understood, and each month explains the meaning of a term that...
Experts sometimes use vocabulary which can seem obscure to novices. In order to be precise and to be understood at the same time, Collector Square explains the meaning of a useful word to luxury object aficionados every month.
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