A rare, vividly rosy-purple diamond, called the Eternal Pink and valued at $35 million, is set to be auctioned off by Sotheby’s as part of its Magnificent Jewels sale in New York in June. The 10.57-carat stone is being marketed as the most valuable purplish-pink diamond ever brought to auction, with the highest ever pre-auction price per carat estimate, according to Sotheby’s.

“Its refined lines combined with the intensity of its color earn it a place as one of the world’s most extraordinary gems," Tom Moses, executive vice president and chief laboratory and research officer at the Gemological Institute of America said of the cushion-cut diamond.

According to Sotheby’s, the stone, which was mined in Botswana, is “comparable to ultimate masterpieces of art — far rarer than a Magritte or a Warhol," thanks to its clarity and lack of imperfections.

Pink diamonds are among the rarest and most sought-after gems in the world and considered a major draw for investors.