Created by Lazare Kaplan in the 1960's, oval diamonds are a modified brilliant-cut (like virtually all round cuts). Because the two shapes possess a similar fire and brilliance, the oval is an ideal choice for a customer who likes the look of a round diamond, but wants something more unique. Oval diamonds have the added advantage of an elongated shape, which can create the illusion of greater size. The slender shape can also make the finger of the wearer appear longer and slimmer, an effect often desired. Oval diamonds are also very popular as their length can accentuate long, slender fingers.