Quick view SALE Baron Hawling Serinium® Wedding Band 18K Yellow Gold Inlay with Satin Finish $1,850.00 $825.00 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