1 Carat Emerald Cut Diamond Art Deco Engagement Ring Platinum. This gorgeous diamond engagement ring is quintessential Art Deco style. The 1.01 carat emerald cut diamond is held in place by four fishtail prongs that seat the stone slightly above the shoulders with plenty of open space on the sides for light to come in. The shoulders feature bezel set emerald cut accents surrounded by bead set round cut diamonds, which provides a splendid amount of sparkle! The platinum band has a slight knife edge which also lends to the angular appearance of this late art deco stunner. A truly magnificent engagement ring!