This set sparkles so much! The pendant is 1-1/4" long, and the studs have about 5 mm diameter crystals. The sterling silver chain, marked "925" and "Italy" is 18" long with a jump ring clasp. The posts on the earrings are the longer version (about 7/16 inch). Neither the earrings nor the back of the pendant are marked, and I don't believe they are sterling but rather are silver plated. The set is in excellent condition, and would make a nice gift. It will be shipped in a gift box.