This necklace is in the category of the Tahitian Pearls according to the tested results and the P.S.L criteria. Emerging from the tropical lagoons of French Polynesia, these pearls have been hand selected for their top quality and their strongest Teri brightness and comes with an Authenticity Certificate issued by the Pearl Science Lab of Japan. Pearl Information: Pearl Size: 10.0x12.2mm Interference colour: Vivid Body Color: Black Imperfection: Slightly Shape: Round Remarks: - Unique growth patterns were recognised under magnification - Reflection Spectroscopy testing revealed the absorption spectrum characteristic for the black-lipped pearls generally about 700nm Knotted between each pearl for safety, the necklace is completed with a solid invisible clasp. One end pearl receives a fine quality screw and the other end pearl a bolt mechanism. The clasp easily functions by gently twisting it counter clockwise to unlock, and clockwise to lock. Upon closure, the screws are fully hidden. At a length of 44cm the necklace sits nicely under the collarbone. Packaging: Necklace Jewelry box and an Authenticity Certificate to guarantee the source and quality of the pearls. Insured track and trace delivery UNITED PEARL - OUR EXPERTISE SINCE 1923. Due to our wide range of pearls, its guaranteed quality, and expert knowledge of the market, United Pearl is offering its customers nature’s finest creation with the best Service and Quality.