Social media starlet who is famous for her martaa_diiaz Instagram account. She has gained popularity there for her fashion, lifestyle, and beauty blogging, which has included modeling and travel photos. In October 2019, she published her first book titled Todo Lo Que Nunca Te Dije.
She began her Instagram account in July 2014 with her first post.
She has amassed more than 2.4 million followers to her Instagram account. She also has over 2.1 million followers on her maarta_diaz TikTok account. She has ridden horses competitively as an equestrian. In July 2019, she met singer Rosalía at the Bilbao BBK festival.