From a heart of Africa - Shattuckite Chrysocolla Apatite cokteile ring
Large 1 3/8" x 7/8" coboshon is Shattukite and Chrysocolla. This stone is mined in only Tantra mine in Congo, Africa. Stone set in oxidise sterling silver with 22K gold accents. faceted apatite set in 14K gold. Size 10.