Vintage Hexagon Cut Aquamarine Ring 14k Yellow Gold.  This vintage Art Deco engagement ring features a very unusual 1.27 carat hexagonal cut aquamarine set in 14 karat yellow and white gold. The stone is bezel set with a neat textured border that meets the wonderful gold filigree work up just below the face. The nice open filigree work really compliments the unique aqua mounting making this a very special ring.