Two Decades of Diamonds

It’s 10 a.m. on a Thursday in January, but “All of a Sudden” by Moneybagg Yo and Lil Baby is blasting over the sound system at Avianne & Co., a jewelry shop in Manhattan’s Diamond District. Joseph Aranbayev, who goes by Joe Avianne, steps into a ceiling-high glass cube situated at the center of a marble sales floor. It’s surrounded by cases filled with everything from diamond-encrusted watches and necklaces to branded leather accessories. His attire commands attention immediately—an all-over-printed button-up shirt, Dolce and Gabbana sneakers….