The Chantilly | RoundCathedral Solitaire Engagement Ring with Floral Prongs and Diamond Accents Where whimsy meets precision. Take the cake in the Round Chantillya cathedral solitaire engagement ring that blends timeless design with playful detail. Round and marquise diamonds dust the shoulders, while a bouquet of marquise prongs cradles a brilliant round cut center stone. Floral inspired and full of flair, this unique solitaire is elegant, unexpected, and anything but