It lists for $525
-Size 12
-Approximately 19 mm at the front tapering to approximately 7mm at the back
-Approximately 16mm square black onyx stone.
-Inside marked with (C)DY Ti and DY on the outside
-The ring comes in a David Yurman gift box with a certificate of authenticity.
-US customers: I ship for free with USPS priority mail and offer express shipping for $30