Herkimer Diamond.  Crystal Grove Mine, Lassellsville, near St. Johnsville, New York.  This matrix specimen measures 5.2 x 4.2 x 2.5 cm and shows of a nice cluster of very clear crystals measuring up to 2.6 cm each, on its top.  Great luster and transparency to the larger crystals that sit on this quartz druse covered dolostone matrix.  Very aesthetic and displays great.  No damage.  $240