Goldlip Mother of Pearl or Pinctada Maxima is scientifically the same as White M.O.P. only that gold is taken from the reverse side of the shell. Good quality dark gold shells come from the waters surrounding the Philippines and parts of Indonesia. Goldlip shells will yield both gold pieces from the edges as well as colorful white pieces from the inside of the shell. A range of colors within each piece are common and acceptable. Goldlip is priced based on depth of color and iridescence. A good quality pair of gold pearl will not have any inclusions in the surface. Currently Goldlip is especially difficult to yield and sizes max out near 3" in length and 1" wide.