You won't believe the luster on these beautiful Edison Pearl beads. These almost perfectly round, white Edison Pearls are gently graduated from 12-15mm. What are Edison pearls you ask.....Edison pearls are farm raised, salt water quality pearls. These beauties are formed through a process called nucleation. A small foreign object or bead is inserted into the nucleus of the mollusk. In response, the mollusk covers it with nacre and a pearl is formed. Pearls have long been a symbol of wealth and power. Long, long ago only nobles were allowed to wear them. These lustrous wonders are very limited so you best hurry.