Harry Winston (March 1, 1896 – December 28, 1978) was an American jeweler. He donated the Hope Diamond to the Smithsonian Institution in 1958 after owning it for a decade. He also traded the Portuguese Diamond to the Smithsonian in 1963.
Winston's father Jacob started a small jewelry business after his mother and he immigrated to the United States from Ukraine. While growing up, he worked in his father's shop. When he was twelve years old, he recognized a two-carat emerald in a pawn shop, bought it for 25 cents, and sold it two days later for $800.Winston started his business in 1920 and opened his first store in New York City in 1932.
Winston's jewelry empire began in 1926, with his acquisition of Arabella Huntington's jewelry collection, for $1.2 million. The wife of railroad magnate Henry E. Huntington, Arabella amassed one of the world's most prestigious collections of jewelry, largely from Parisian jewelers such as Cartier. When Winston bought the collection after her death, the designs of the jewelry in the collection were quite old fashioned. Winston redesigned the jewelry into more contemporary styles and showcased his unique skill at jewelry crafting. According to the Huntington museum, "He frequently boasted that Arabella's famous necklace of pearls now adorned the necks of at least two dozen women around the world."
When he died, Winston left the company to his two sons, Ronald and Bruce, who then entered into a decade-long battle over the control of the company. In 2000, Ronald along with new business partner, Fenway Partners, bought Bruce out from the company for $54.1 million.