The 1988 Donruss Diamond Kings is a 27-card insert set included in 1988 Donruss Baseball. Each card features an original painting by renowned baseball artist Dick Perez, showcasing one standout player from each Major League team. The fronts combine Perez’s artwork with player statistics and a distinctive woodgrain border, while the backs include a player biography and career highlights. The Diamond Kings subset became one of Donruss’ signature features throughout the 1980s and remains popular with collectors for its unique blend of baseball history and sports art.