Large Hole Straight Drilled Oval Freshwater Pearls have a slightly opaque nacre, are well matched for quality on strand, are straight drilled with a 1.5mm hole, and are an excellent value for an average size & well made freshwater pearl oval shape. An off white Large Hole pearls with a consistent 1.5mm inside diameter produced with a 5 step drill process to insure a cleanly drilled hole without abrasion to the nacre and the drill hole is a consistent diameter through the pearl.