The stone-topped version of the 52 by 28.5-inch lounge table: Pietra Grey sintered stone over an Opal Grey aluminum frame, 12 inches high, 90 pounds. Stone takes dropped glassware, hot carafes and years of direct sun while holding its finish, which is the trade you make for the weight. Visually it anchors a grouping in a way the metal-top version does not. Set it in front of a three-seat sofa, or inside an L-shaped sectional at a resort lounge or private club terrace.