Sale Choose Options Quick view Lord Wingerworth Serinium® 2mm Center Satin Groove 8mm Polished Finish Wedding Band Serinium® DurabilitySerinium® tough, hard and scratch-resistant. Serinium® is twice as hard as Cobalt Chrome, 5 times harder than Titanium, 6 times harder than Platinum, 7 times harder... MSRP: $695.00 $405.00 $400.00 Choose Options