The Mitsubishi Diamante is a car manufactured by Mitsubishi Motors between 1990 and 2005. It was first introduced to the public at the Tokyo Motor Show in 1989, and went on sale in Japan in May 1990. The name was derived from the Spanish, Portuguese, and Italian words for diamond.
The Diamante was first sold in 1992 in the United States, replacing the Sigma, which was based on previous generation Mitsubishi Galants. Mitsubishi ceased to export the Diamante to North America after 2004 due to a decline in sales and unfavourable exchange rates.
At its introduction in 1990, it won the Car of the Year Japan Award.