Born in New York City in 1943, Joel Arthur Rosenthal earned a degree in art history and philosophy at Harvard University before moving to Paris to pursue a life in the arts. It was first at his needlepoint store where Rosenthal developed his talent for working with color, attracting the attention of designers including Hermès, Valentino, and Bulgari.

Quickly developing his natural talents as a self-taught jeweler, Rosenthal solidified his place in the jewelry pantheon that is Place Vendôme in 1977 when he opened his Parisian boutique with his partner, Pierre Jeannet. The only thing identifying his boutique are his discretely placed initials: JAR. A rare privilege, only few clients have the opportunity to behold the masterpieces that await inside.

JAR is celebrated for his exceptional artistry and technical brilliance, the quality of his craftsmanship harkening to a bygone time. His bold use of color and unconventional gemstone pairings result in jewels with striking architectural depth and scale, often taking inspiration from the natural world. As a true artist, JAR redefines the boundaries of jewelry design.

With fewer than 100 pieces crafted annually, JAR jewels are amongst the most coveted in the world. Jewelry collectors remain eager, anticipating each new and unpredictable design.

Beyond adorning his refined clientele and record-breaking museum exhibitions, the rare auction appearances of JAR jewels offer one of the few chances to witness and own the magic of his extraordinary creations.