From 1964 exactly. They were married in 1939 and 1964 was their 25th anniversary, she got a new diamond ring and this was it. 14K white gold, wide band that looks like a tiara. Lots of little diamond chips in 3 rows. No flaws. It appears to be a women's size 7 or a men's pinky ring. 3/4" wide at center as shown in photo. Comes in original ring box, which is white plastic with red velvet cushion. It's not your everyday engagement ring but it also makes a swell dinner ring or an extravagant wedding band.