"It's a beautiful stone, it's extremely rare to find a pink diamond, vivid pink diamond, of this size," she said.
"The colour saturation of this stone is... so difficult to find in nature, and then when you find a crystal... with that weight, with that colour, and a very good clarity, that's just really rare."
"I wouldn't know where to find another one at this moment."
While the Fortune Pink is the largest vivid pink pear-shaped diamond to go to auction, larger cushion-shaped pink diamonds have previously gone under the hammer.
In 2018, Christie's sold the 18.96-carat Winston Pink Legacy, which raked in over $50 million -- the highest per-carat price ever paid for a stone of its kind.
The giant Raj Pink diamond, weighing a full 37.3 carats, meanwhile, failed to sell at a Sotheby's auction a year earlier, where it had been estimated at up to $30 million.
