Centered on a bezel set cabochon tourmaline (10.55 x 8.62 x 5.78 mm) weighing approximately 4.3 carats, the shoulders with black enamel, stamped 18K and with maker's mark, numbered 26790.

16.2mm; Ring size 6

8.9 dwt.

Tourmaline with abrasions and enamel with scratches to surface visible under 10x magnification.