Mahvash Sabet is an acclaimed Iranian poet and author who was unjustly arrested in Iran for her religious beliefs. She is part of the Baháʼí 7, a group of Baháʼí community leaders, the second largest religion in Iran. In 2008, the 7 leaders, including Mahvash Sabet, were sentenced to prison for 10 years. Mahvash Sabet was finally released in 2017.
The correct pronunciation of Mahvash Sabet is Mah(k)-vahsh SAH-bet.
The "h" in Mahvash is pronounced like a guttural "h", that sounds a bit like there is a "k" at the end. The "a" in the second syllable, -vash, is pronounced with an open "ah" sound.
In her last name, Sabet, the stress is on the first syllable and it is once again pronounced with an open "ah" sound.