Los Castillo made these early pieces with pre-Columbian jadeite disks. The necklace is signed on the clasp and the medallion as shown with the Los Castillo hallmark. The chain is original to the piece and also has 8 jadeite beads around the neck. It's weight is 93 grams with the silver work on the medallion being deeply hand carved with the Quetzalcoatl serpent design. The valuable jade adornment has no cracks or chips and the piece has no damage or repairs. The length is 23in. long with the drop being 3in. across and 2.5in. tall. The earrings are 11 grams and are one inch x one inch in size. They are of serpent design but are not Los Castillo hallmarked. They are also hand carved and striking on. A remarkable piece, just LOOK AT THAT NECKLACE!