Speculation was rife, since the Oscar winner was photographed with an engagement ring in early January.
At the opening of his new restaurant, Villa Azur, in Miami on Saturday, when asked about the engagement rumors, Martinez, 46, told Miami Herald, “Yes, of course it’s true!”
Berry, 45, fueled rumors when she filed a court petition last month to relocate her 3-year-old daughter to France.
Previous reports stated that the actress’ emerald engagement ring was designed by Gurhan. However, it appears that the designer was actually Robert Mazlo of Paris, whom Martinez called “a real artist” who has been making jewelry for “kings and queens for many centuries.”
Halle and Olivier became a couple after co-starring in the Dark Tide in 2010.