Quick view SALE King Boarwick Serinium® Pipe Cut 8mm Wedding Band with 5mm Sterling Silver Inlay Bark Hand Finish $1,200.00 $700.00 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... Choose Options Add to Wish list