Centered on a rectangular cushion cut green tourmaline (17.3 x 13.2 x 9.2mm) weighing approximately 15.8 carats, completed with a polished shank, stamped 18K and with a maker's mark.
Ring size: 5.5
6.3 dwt.
Good estate condition; tourmaline with minor abrasions visible under 10x magnification.
