Old European Diamond Engagement Ring Platinum.  This marvelous engagement ring features a .80 carat Old European cut diamond that is set in platinum. The primary stone is bezel set with open space separating it from the dazzling diamond halo floating around it. The entire face of the ring is a mesmerizing web of ornate wire work and diamond accents that incorporate twisting elements and fine filigree details. The honeycomb of metal work continues in the undercarriage and provides an avenue for light to get into the diamonds while at the same time a pleasing design for a side profile.