Estate Earrings. 14K White Gold Diamond Stud Earrings. Each earring contains 1 round diamond measuring approximately 4 mm and .25 ct each for a TCW of .50 ct, each stud setting is a Hexagon shape measuring approximately 9mm X 9mm. Earrings are screw back and each has a 10K white Gold backing. Total earring weight for set is 2 grams. Earrings are hallmarked 14K and backs 10K.