The only other details I know about this size 6 ring are that it was purchased in 1997 for $1200, it is 14K gold, and it is a natural diamond with slight color (as opposed to lab-grown). I took it to a local jeweler who verbally appraised it at $600-$650, if it were new. Since it is not new, I figured 40% off of that given range would be a fair listing price.