29 décembre 2013
A belle époque diamond solitaire ring, circa 1915
A belle époque diamond solitaire ring, circa 1915. Photo courtesy Bonhams. the oval-shaped diamond, weighing 6.98 carats, within a delicate openwork mounting of single-cut diamonds; mounted in platinum; size 5 1/2. Sold for US$ 458,500 (€331,909) Accompanied...