Diamond Cluster Filigree Engagement Ring in PlatinumDiamond Cluster Filigree Engagement Ring in Platinum. This engagement ring is a modern take on a Victorian cluster style ring. The center stone is a . 68 carat round brilliant cut diamond. The diamond is surrounded by two concentric halos of accent diamonds with swirling milgrain detail adding a beautiful texture. Additional accent diamonds adorn the shoulders of the ring and taper into a thin platinum band. The ring sits low to the finger making it