18kt gold plating over silver set of Earrings with cultured pearls TOUS Virtual Garden. Base of the tortoise silhouette earring without bolt; interchangeable between the two varieties of earrings. One pair with ball detail with 18kt gold plating and another pair with cultured freshwater pearl, interchangeable to be placed in the center forming the shell of the tortoise silhouette. Size of the cultured pearls: 3.2 mm. Size of the charm: 3.2 mm. Push back. Piece made of sterling silver with 18 to 23kt gold plating with a thickness of 3 microns. This quality guarantees a greater durability of the jewel.