9: The Pink Promise, an oval-shaped Fancy Vivid Pink diamond, 14.93 carats Sold for $32,480,500 in 2017
This pink stone, with its circular-cut diamond surround featuring more pink diamonds and a platinum ring, set a new price-per-carat world record for any pink diamond when it sold in 2017 — a whopping $2,175,519.
The diamond’s initial grading was Fancy Intense before the jeweller, Stephen Silver, cut it down from 16.21 to 14.93 carats in 2013, shaving off areas of inclusions after years of detailed planning. The resulting stone was upgraded to the much rarer Fancy Vivid category, the highest possible colour mark for pink diamonds.
Content courtesy: Christie’s