Every January during Paris Couture Week, the world’s best high-jewelry houses unveil their latest masterpieces. Houses including Van Cleef & Arpels, De Beers, Boucheron, and Buccellati debuted full collections of unique pieces, focusing their designs on Art Deco, outer space, magnificent landscapes, or the pure beauty of gemstones. Due to the pandemic, several major houses postponed their collections until July,...