I made this necklace using a high quality, round, white pearl that measures 10.6mm. The buyer will receive the EXACT pearl necklace pictured :). The pearl is natural with no treatment whatsoever, (no bleach, no enhancement, no dye, etc.). The headpin, bail, and chain are all 14K yellow gold filled -- they will not tarnish. The necklace is 16 inches long. The buyer will receive a small gold foil box, in case they are purchasing a gift, and a do ship SAME DAY :). Thank you SO much for looking through my items!