... : 15.5-16.5mm pearl 3)Color:white button pearl 4Grade:AAApearl 5)Shape:coin online shop ... Shape: round, near round, off-round, potato, rice, button, coin, drop, baroque shape, ect.Pearl Size: Freshwater pearl ... from 1mm to 16mm. Pearl Color: Nature white, pink and purple. Other color can be dyed according ... 20 years of pearl industrial. 16-17mm white freshwater center middle drilled coin pearls