Auction introduction: The fifty-six jewels presented in this sale reflect an intense intellectual curiosity and a conviction that all art, regardless of medium, should be held in equal esteem. The pillars of the collection are formed by the work of Suzanne Belperron and Joel Arthur Rosenthal (JAR), true artists who, through boundless imagination, technical mastery and a renegade’s confidence, changed the course of jewelry design from the 1920s to today. Though created decades apart, their jewels were—and, in the case of Mr. Rosenthal, continue to be—conceived for those who appreciate the unconventional, but only when executed to the very highest standard. Complementing these works are superlative examples by Boivin, Cartier and Van Cleef & Arpels, and a spectacular Boucheron necklace with a storied provenance spanning more than century. It is our distinct honor to present this unparalleled collection as our inaugural auction of jewels at the Breuer building this December.