Tucked away in a quiet corner of Waikiki, this apartment building's rhythmically staggered facade offers a visual respite from Waikiki's multitude of slab high-rises, and allows most of the 173 single-stacked units a vista of Diamond Head, as proclaimed in the building's name. Angular, cantilevered lanai establish a geometric interplay of enclosure and openness, tempering the vertical thrust of the thirty-seven-story condominium. The enclosure of a few lanai by individual owners adds a spontaneity to the facade, which so far has not detracted from its strong regularity and the interplay of solid and void. In contrast to the angular facade, the entrance, recessed behind the protecting shadow of a porte-cochere, is marked by an inviting curvilinearity, which is further softened by the tongue-and-groove ceiling and wall accents. The building was the first major project to pair architect Boone and developer Bruce Stark.