I purchased this preloved just a few months ago but don't reach for it as I tend to wear just a plan band. I'm asking a substantial amount less than I paid for it. I have the box and the Tiffany diamond certificate.
This is a size 4.5 and weighs over 6 grams. The stone is bright, clear, and sparkly! The link has many more pictures and videos. https://imgur.com/a/g0e4M3r