Initially owned by Robert Sangster's Swettenham Stud before moving to Cambridge Stud in 1991, Eight Carat produced five group I winners. Her top runner was Octagonal, the winner of 10 group I races who is the highest earner in Australasian history with AUS$5,892,231.
Eight Carat, the New Zealand broodmare of the year three consecutive years from 1995-'97, was euthanized Tuesday at Patrick Hogan's Cambridge Stud. Hogan said the 25-year-old daughter of Pieces of Eight was euthanized after suffering a series of minor heart attacks."The kindest, and hardest, thing to do was to euthanize," Hogan said, in a statement issued through New Zealand Thoroughbred Marketing. "The last thing I wanted was to find her one morning knowing that she may have suffered through the night. Her mind and everything else was fine and her eye was still as sharp as ever, but her body just wasn't. She held her head high until the end, as I believe great horses do."