Half a century since the first Graff ... its heart is an imposing, 5.04 carat emerald-cut diamond, which is surrounded by a generous sprinkling of beautiful butterflies made from pear-shaped ...

including three heart-shaped diamonds: a 15.37-carat pink diamond, a 12.79-carat blue diamond and an 11.36 carat or white diamond. Graff makes another appearance on the list with this gorgeous ...