Antique 18K white, rose, and yellow/green gold filigree ring set with an elongated rectangular cut green and pink bi-color tourmaline (11.08 cts.), ca. 1915-1920.  The white gold filigree body of the ring is topped with a rose and yellow gold flower-and-leaf motif frame around the stone.  7/8" north-so-south.  #02668

Antique 18K Tri-Color Filigree Ring with Bi-Color Tourmaline