TARA Pearls Sterling Silver 6x6.5 and 9x9.5mm Freshwater Pearl Stud Earrings The top pearl is a natural color 9x9.5mm White Freshwater Pearl. The bottom pearl is a natural color 6x6.5mm White Freshwater Pearl. Sterling Silver Post with Friction Back. The natural properties and process of pearl formation define the unique beauty of each pearl. The image may show slight differences in texture, color, size, and shape Quality Controlled in the USA.