"Since its founding in 1912, Oscar Heyman & Brothers has created fabulous jewels for some of the world's elite houses, causing it to be known in the trade as "the jewelers' jeweler." The Heyman Brothers arrived in New York from Eastern Europe in the early 1900s, bringing with them their training in their uncle's workshop. The company quickly established a name for itself in the industry, working with top houses such as Cartier, Van Cleef & Arpels...