14k white diamond screw back earrings

Beautifully sparkly. Not sure about the carats. It was given to me as a gift. These are 14k white gold. The 14k stamp is on the screw back. Please note one of the earrings is missing the original screw back and it has been replaced with a brand new sterling silver hypoallergenic screw back. Obviously the screw backs do not match in size or design as pictured.