Satono Diamond is a Japanese Thoroughbred racehorse. He showed promise as a juvenile in 2015 when he won both of his races. In the following year he developed into a top-class performer winning the Kisaragi Sho finishing third Satsuki Sho and taking second place in the Tokyo Yushun. In the autumn he was unbeaten in three starts, winning the Kobe Shimbun Hai, Kikuka Sho and Arima Kinen and took the JRA Award for Best Three-Year-Old Colt.

The Kobe Shimbun Hai is a Japanese Grade 2 flat horse race in Japan for three-year-old Thoroughbreds. It is run over a distance of 2400 metres at Hanshin Racecourse in September, but was contested over 2000 metres until 2006.