I think this is a pretty, sophiticated, and in Italy, not so common name, in the US, a rare name. The pronunciation works well in both countries and it is very nice sounding.
"A" as in "Father," in other words "Dah." Stress your "I" to "EE" and follow with another soft "A"-- MEE-AH-- blend and the result is "Myah." Finish with the final "A." [noted -ed]