This engagement style features the perfect marriage of two tones of gold and silver. And coupled with a 1.7 carat solitaire zircon, its truly a timeless piece. Our two-tone and tri-tone process use 18k gold that electroplated coating the item with heavy layers of 18k yellow gold giving it that 14k hamiliton gold polished look. The silver tone is achieved by applying a heavy coating of genuine rhodium to the item giving is a lustrous silver tone high polish.