Question: What American luxury jewelry and specialty retailer did Jean Michel Schlumberger work at?
Related documents: [0]  [DOC] Jean Michel Schlumberger (June 24, 1907 – August 29, 1987) was a French jewelry designer especially well known for his work at Tiffany & Co. [END] 
[1]  [DOC] Tiffany & Company (known colloquially as Tiffany or Tiffany's) is an American luxury jewelry and specialty retailer, headquartered in New York City. [END] 
Answer: 
Tiffany & Company
Tiffany & Company