Michael Beaudry planned to unveil what he dubbed the world’s first three-stone red-diamond ring, with perfectly matched oval brilliant-cut diamonds, at the Basel, Switzerland, fair in April. The stones, all GIA-graded natural fancy purplish-red, are the rarest trio of red diamonds ever assembled in one ring, according to Beaudry.

The ring features a 0.73 ct. oval center stone accompanied by two side ovals weighing 0.36 ct. and 0.40 ct. each, for a total weight of 1.49 cts. According to Ian Balfour of Christie’s Auction House, red diamonds are so rare that, as of 1993, there were fewer than thirty specimens known in the past 150 years. Red diamonds have set recent auction records, the most notable being the 0.95 ct. round brilliant “Hancock Red.” This fancy purplish-red diamond sold in 1987 for just under $1 million per carat.

“Never in my life did I imagine I would experience three stones as magnificent and unusual as these,” Michael Beaudry, the president and owner of Beaudry in Los Angeles, said in a statement.

The stones were set by Beaudry in a handmade, all-platinum ring that delicately frames the natural color and beauty of the three red diamonds.