European Cut Diamond Cluster Engagement Ring Platinum.  This modern engagement ring features a .98 carat Old European cut diamond and 1.07 carats of accent diamonds and is set in platinum. The gorgeous center stone is bezel set with milgrain and wrapped in a halo of diamonds that are set with shared prongs and a bezel around their outer edges. The outer bezel also features milgrain detail and there are accent stones set along the shoulders of the shank. This is a fantastic engagement ring if you are looking for a halo that drastically increases the overall diamond presence of the ring.