Gold necklace, Au 375/1000 (9K). White gold. Supremely elegant necklace with a seductive cocktail of iridescent glare embodying absolute gentility. With genuine, natural pearls (Akoya). Classic pearl knotting on a black silk cord (each pearl separated by a knot to prevent pearl damage). Gemstone characteristics: Type: Genuine, natural black pearls. Country of origin: Japan. Round shape, partly irregular. Small, natural growth irregularities. Diameter ca. 7-8 mm. Color: Beautiful, deep black with dark green metallic blue toning. Minor lighter points at contact with a pearl shell conch (A). Luster: A. Hardness: 2.5 - 4.5 Mohs. Specific gravity: 2.60 - 2.85. Refractive index: 1.52 - 1.66. Necklace length 45 cm.