I bought this estate necklace because the barrel beads were a pretty jade color. I tested the beads with my Presidium electronic gem tester and the beads are actually jadeite and chrysoprase. The necklace is 21 1/2" with a gold plated spring ring. The carved focal bead is 3/4" and the other carved barrel beads are also 3/4" but thinner. The chrysoprase round beads are 7mm. Weighs 3.1 ounces. Excellent vintage condition.