What do diamonds and clothes have in common? They both come in and out of style. Diamonds come in all shapes, such as round, marquee, cushion cut, princess cut, oval, emerald, pear and more. Currently, round and princess cut are commanding higher prices than most others, with marquee and pear shaped diamonds commanding the least. When a diamond buyer purchases a stone, the shape is a very import factor in determining the offer price. In some cases a round diamond of the same carat, clarity and color of a similar marquee or pear cut, can command prices of almost 100% more.