Malachite 12Karat Gold Chain Very Old Carved Beautiful Pendant on Delicate Chain

This is an old, beautifully maintained carved malachite, smooth on the back. I took to a jeweler who said the chain is 12 Karate. I can’t read the stamp or remember what it is but will post when I can get a clear pic. See images for approx measurements. Please ask any clarifying questions prior to purchase ⚡️