This antique piece was handcrafted sometime during the Art Deco design period ( 1920-1940 ). The filigree setting is 18k white gold and features a center diamond measuring approximately 0.50 carats. The center diamond grades approximately I in color and VS1 in clarity. The filigree setting has a sweet floral motif along with four sparkling diamond accents. The piece features extensive antique hand engravings and an antique style knife edge shank. This timeless solitaire style diamond ring is a wonderful heirloom quality. This ring is currently a size 5 & 1/2.