European Cut Diamond Cluster Engagement Ring PlatinumEuropean 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