These rare and gorgeous Tiffany & Co. earrings are the perfect size! They measure 5/8" long by 7/16" wide. There are approximately .60 ctw of sparkling white diamonds. The earrings are very secure with snap in place omega backs. The post is very sturdy with a notch that locks on to the omega back. IMPORTANT: The earrings are opened by pushing up on the notched post, NOT pulling down on the omega back.