Geometric Vintage Diamond Engagement Ring Platinum.  This beautiful vintage engagement ring features a 1.01 carat Old European cut diamond that is set in platinum. The mounting is a floating hexagon with open spaces between the diamond and the outer borders of accent diamonds with milgrain edges. The primary stone is actually prong set inside of the hexagon shaped mounting, which makes it appear to be bezel set at a glance. The shoulders and basket are adorned with lovely swirling filigree work that give a wonderful view from the side profile.