1951 platinum, diamond, and ruby necklace

Photograph by Marian GErard, Cartier Collection © Cartier.

Innovative from the start, brothers Louis, Pierre, and Jacques Cartier entered the jewelry business in the mid-1800s and not only pioneered the use of platinum but also were among the first jewelers to incorporate geometric shapes in their designs, presaging Art Deco. “Brilliant: Cartier in the 20th Century” (November 16 through March 15, 2015), at the Denver Art Museum, celebrates the house’s ability “to look ahead and proactively adapt,” says curator Margaret Young-Sánchez. A 1907 platinum and diamond laurel-leaf tiara worn by Princess Marie Bonaparte, and a 1951 platinum, diamond, and ruby necklace once spotted on Elizabeth Taylor, are proof that all that glitters is not necessarily gold.