With models, celebrity guests and luxury sponsors, tennis fashion has lifted its game. But has it crossed the line?

So, when Julia made an appearance on Late Night with Seth Meyers on Tuesday, it should come as no surprise that she stayed ...

She paired the pieces with lace-up heels and a selection of discussion-worthy jewelry which, naturally, she showed off while sipping a martini. Dua wore a signet-style gold ring on her left ring ...