Which size do you prefer? It probably depends on the day, yes? If you you'd like the smaller size today, you'd be experiencing a white button cultured pearl stud that measures 7 - 7.5 mm with good luster and rare/clean blemishes. Perhaps tomorrow you'd like the larger size...then you preference is 12 - 12.5 mm white button pearl studs with fair luster and light blemishes. The findings are 14 kt plated sterling silver. The larger size is pictured on the model.