Vintage 5.75mm Japanese Saltwater Akoya Cultured Pearl Solitaire Stud Pierced Earrings-Sterling SilverThese are a lovely pair of solid sterling silver and Japanese saltwater akoya cultured pearl stud earrings. The pearls measure 5. 75mm and are lustrous with rosy pink overtones. The pearls are vintage from my collection but the hardware is brand new. The pearls are set into solid sterling silver with butterfly backs. They are stamped "925". All pearls are truly vintage and only been lightly cleaned.