For decades, classic diamond cuts including the round brilliant, princess, emerald, cushion, oval, pear, and marquise have been widely popular due to their versatility. The round brilliant cut is the most commonly known and favored cut. The emerald cut exudes elegance and sophistication, while the cushion cut appeals to those seeking a soft and romantic touch. The elongated shapes of the oval, pear, and marquise cuts flatter the wearer's fingers when used in engagement rings or other diamond jewelry.

Old mine and old European cut diamonds are antique diamond cuts that were popular in the 18th and 19th centuries. They are known for their unique shapes and soft, romantic brilliance. Old mine cut diamonds have a cushion shape with rounded corners and a high crown, while old European cut diamonds have a round shape with a small table, high crown, and large culet.