This is a yellow gold pendant necklace from Chopard with square link necklace. The heart diamonds is .20 carats and the total diamond weight is .73 carats in diamonds. The necklace weighs a total of 43.1 grams and the heart measures 26 mm wide with a 40 cm or 15.75 inches long chain. It comes in the famous Chopard box, and with its certificate of authenticity. Original retails $19,960.