Antique Engagement Ring Art Deco .07ct Old European Cut Diamond in 18k White Gold

Original antique Art Deco Diamond engagement ring in 18 karat white gold set with a .07 carat old European center diamond.  The diamond is bead set in an octagonal style decorative plate. There is a U shaped pattern visible from the gallery view.  There is an engraving detail in a chevron leaf pattern cascading into the high polish shank.