This is an authentic ring by David Yarman. It is sterling silver with a round faceted light amethyst stone in the center framed with two rows of diamonds. The ring was originally a size 6, as noted by the Hallmark inside, but it has been resized to a size 9. You can see on the back of the ring where silver was added to make it larger. The inside of the ring is hallmarked DY & 925 as well.