Ahead of the curve. This sensual Suzanne Belperron mid-century ruby, diamond, and platinum concave ring has curves in all the right places. Circa 1945-55. Ruby total weight approximately 11.50 carats. Diamond total weight approximate .25. French assay marks and partial maker's mark for Groene & Darde. Certificate of authenticity by Olivier Baroin included. Size 7 1/2.