18” sterling silver heart pendant w 925 Necklace.

18” sterling silver heart pendant Necklace. Good preowned condition. Not sure if the stones are diamond or Cz so I am pricing it as if they are cubic zirconia. Necklace is marked 925 on clasp claw and on the eye piece. Charm is marked 925 and measure 3/4 inches long. Happy to bundle with other listings. Thanks for looking!