These beautiful beads are natural sardonyx agate. This necklace has a wonderful and very detailed carving of a monkey climbing a calabash. The combination of natural colors on this gemstone is stunning; celadon green with golden brown and dark brown. You can also see some of the natural banding of the stone in the beads. The beads measure 10mm and the carving measures 2" x 1-3/8". The pendant is strung so that you can wear it on the side but it looks perfectly fine worn in the center. The necklace is endless style and 32" long. This is a gorgeous and unusual stone necklace. Wonderful natural colors.