18 karat yellow gold custom solitaire mounting with ornate hand-engraving and 0.44 carats of sparkling white diamonds on the prongs and lower halo.  This heirloom also has a euro-style square shank.  In the center is a 5.02 carat radiant cut natural diamond that has been graded and reported by GIA.   (The ring is shown with rhodium plating making it appear white and can be removed when sized to fit.)