The half-Puerto Rican beauty looked chic wearing a low-cut camisole tucked into black silky trousers with her wedding bling.
Naya spent the afternoon promoting her debut single Sorry featuring her 25-year-old fiancé.
Meanwhile, the two-time Grammy nominee - born Sean Anderson - was 2,500 miles away performing at his concert in Toronto.
Rivera and Big Sean first went public with their relationship at the 42 film premiere last April, but they first connected over Twitter.
'Every morning I wake up, I look over at her and be like, "I'm winning so hard,"' the Hall of Fame hitmaker told E! News.
'He's awesome, and I'm really happy, and I feel like I'm in a really good place in my life,' Naya gushed to E! Online in May.
'So yeah, we're doing really well.'