Deco Filigree European Diamond Engagement Ring in 18K.  This amazing vintage filigree ring features a .26 carat Old European cut diamond set in 18 karat white gold. Full of wonderful filigree detail in the shoulders with overlapping wires with open spaces in between them. The center stone has a very ornate mounting, and is held by eight (8) prongs inside another milgrain border. A very special Art Deco mounting with a great amount of flash and sparkle.