Vintage Engagement Ring 1920's Art Deco Diamond in 18K

Vintage engagement ring 1920s Art Deco diamond in 18k white gold. The diamond in the center is an Old European cut that weighs .72 carats. The diamond is secured in an octagonal bezel with a openwork square frame of metal around it giving the ring a distinctly geometric look. The band has a well defined chevron pattern on it and it tapers as it moves away from the diamond.