Cover photography by Kenji Toma Paper Artist: Jo Lynn Alcorn / Prop Stylist: Eriko Nagata To mark this momentous occasion, we gathered pieces spanning—you guessed it—150 years. Thanks to the designers, galleries, and estate jewelers who let us borrow some of their most precious gems. Daphne earrings in 18k fair-mined white gold with 18.55 cts. t.w. emeralds and 10.14 cts. t.w. white diamonds, price on request, Ana Khouri, 646-998-4840, anakhouri.com Edwardian platinum and 14k gold cocktail ring with 0.5 ct. diamond, 3.5 cts. t.w. sapphires, and natural freshwater pearls, $3,375, Wilson’s Estate Jewelry, 833-294-5766, wilsonsestatejewelry.com Mid–20th century Bulgari brooch with 6.5 cts. t.w. diamonds in 18k yellow gold and platinum, $25,000, Macklowe Gallery, 212-644-6400, macklowegallery.com 1930s platinum ring with 4.4 cts. t.w. emeralds and 1.5 cts. t.w. diamonds, $27