View our Selection of Unique Classic Engagement Rings with a Oval Cut Diamond. Each is made to order for you by its designer. Classic-style pieces are aspirational silhouettes evoking time-honored tradition and displaying painstaking craftsmanship. Each fine detail is simple and perfect in its form. Oval cut was created and popularized in the 1960’s by the famous American diamond cutter Lazare Kaplan. It is a slightly elongated brilliant that is enjoying renewed popularity.