Waterford Lismore Diamond Tumbler, Set of 2. The Lismore Diamond collection is a strikingly modern reinterpretation of the Lismore pattern, which includes Waterford's most advanced and original giftware statements Lismore Diamond is the signature pattern for the Lismore 60th Anniversary celebration, featuring horizontal cuts over alternating-height vertical cuts, which create light-refracting, diamond-like facets of unsurpassed prismatic reflectivity Synonymous with luxury and fine living, the Waterford Crystal Lismore pattern has been Waterford's pre-eminent design for 60 years Derived from the Gaelic lios more, meaning great ringfort, Lismore was inspired by the gothic architecture of the 800 year-old Lismore Castle in County Waterford, Ireland