Thank you for viewing. The jade I am selling was collected in the Itoigawa area before regulations were put in place, and it is the national stone of Japan. Itoigawa Jade Necklace, Pendant Natural Stone Origin: Itoigawa NO. 547 Size: Approximately 30mm x 10mm x 10mm Weight: Approximately 7g Please understand that there may be small scratches and size errors due to handmade processing. The hanging cord is polyester, 2mm in diameter, and about 60cm long; it will be included as is. The color of the image may differ from the actual product depending on the monitor. The appeal of Itoigawa jade: (prosperity) (family fortune) (longevity) (good luck) (health) and more We do not create certificates of authenticity because the appraisal and certificate production are expensive (which would make the product price too high). Shipping will be by regular mail or non-standard mail. Since postal delivery does not provide tracking, we are waiting for bids from those who will contact us upon receipt.