Beautiful ring! I purchased this for my vintage collection but decided to let some things go to help me fund my animal rescue fees I incurred. 18k White Gold Size 4.25 (with some can fit up to 4.75) I also had this sized down from a size 7 so it could be sized back up. The gold was redipped and polished and the center diamond was reset to make it secure. Center measures 5mm Diamond is graded D color with SI1 clarity which is incredible for that time period.