Antique Engagement Ring Art Deco .47 Round Brilliant Cut Diamond in PlatinumThis original antique engagement ring features a . 47 round brilliant cut diamond as its centerpiece. The round center diamond is held in place by four corner prongs, allowing for a more square look and also allowing the center diamond to blend in with the geometric lines throughout the ring. The center diamond is accented by four single cut diamonds on each side that are bordered in with milgrain detail and negative space. Additional diamonds to the