This is a necklace with a pendant top made of genuine pearls. The case says "Genuine Pearl Guarantee." There is no certificate. The pearls have a slightly bluish tint. I remember buying it during a trip to the Ise-Shima area. Size (approx.): Pendant top 2 cm Pearl diameter: 0.5-0.6 cm Chain length: 40 cm Necklace weight (approx.): 3g Although unused, it has been stored for a long time, so please understand before purchasing. The necklace itself is clean, but the case has scratches. If you have any questions, please leave a comment. Blue, square, with box, Mie, Toba, Mikimoto Decoration: Pearl Color: Gold系 (Gold-toned)