1940s Retro Era Diamond Ruby 18k Yellow Gold Cocktail Dome Ring

1940s Retro Era Diamond Ruby 18k Yellow Gold Cocktail Dome Ring https://www.sohojewelers.com/products/the-cefalu-retro-era-diamond-ruby-18k-gold-cocktail-dome-ring?_pos=1&_sid=b57a69b68&_ss=r