With so many choices facing a couple, choosing an engagement ring should be one of the most enjoyable decisions to make. And a fine place to start is with the 'king of diamonds' Harry Winston who for over a century has been sharing the romance, mystique and beauty of great diamonds with its clients. Aristotle Onassis bought Jacqueline Kennedy's engagement ring from Harry Winston as have long lists of other Hollywood royalty. Big or small, diamonds are Harry Winston's speciality and one of the most famous diamonds in the world, the Hope, was donated by the house to the Smithsonian museum.. Harry Winston, diamond pear shape solitaire ring, price from £7,900. Diamond round cut solitaire ring, price from £7,050, Diamond heart shape solitaire ring, price from £7,900. "A good diamond, however small, is a possession to be prized for many generations," said Harry Winston himself. And even. Shop unique Harry Winston jewellery & watches and other Harry Winston fine jewelry from the world's best jewelry dealers. Global shipping available..