Opera Strand Mikimoto Blue Lagoon Japanese Cultured Akoya Pearl Necklace - 14K Yellow Gold 31.25 InchThis is a vintage strand of authentic Mikimoto Blue Lagoon saltwater cultured Japanese akoya pearls. The pearls range from 5. 50 5. 75mm. They are round with great luster and rosy pink overtones. Very few blemishes. Clasp is in solid yellow gold is stamped "14K" and "BL" for Blue Lagoon, which is a line by Mikimoto for high end department and jewelry stores. Total length is 31. 25 inches. All pearls are truly vintage and have only been lightly cleaned