The most popular shape of all, the round Tiffany Style Solitaire Engagment Ring is a definite classic, featuring a brilliant cut round Ziamond Russian formula Cubic Zirconia. The Round Tiffany Style Cubic Zirconia Solitaire Engagement Ring is a classic with a slightly rounded shank that measure about 2.75mm at its widest point and a die struck white gold or platinum head. Choose your carat size and your finger size. The round cubic zirconia tiffany style solitaire engagement rings shown here come standard with six prongs, but 4 prong versions are also available via special order. Also available in 18K solid gold or luxurious PLATINUM. Click on an item for complete details or call 1-866-ZIAMOND for assistance.