The actresses were hard to miss as they made their way to the church. Chopra stunned in a custom Vivienne Westwood suit with a sharp angled hat by Philip Treacy, while Spencer (the first of Markle's Suits co-stars to arrive) rocked a blue-and-white polka-dot dress by Alessandra Rich and matching blue fascinator. Gavankar, meanwhile, stood out in an orange gown and cape and showstopping black hat.
The trio joins the wedding's already star-studded guests.
Chopra confirmed she was attending Markle's wedding during her appearance on Live With Kelly and Ryan last month, and revealed on Good Morning America that she was having trouble picking a wedding present!
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Priyanka Chopra Jokes She Was 'Scammed' Into Talking About Meghan Markle & Prince Harry's Wedding
"I've been struggling with that myself. I think you just have to think about the person you're getting the gift for," she said. "What do you get a princess? Do you think I should get the princess a frog? Most princesses like frogs I heard. I don't know, we'll have to think about that one."
See more in the video below, and keep up with ET's live blog of the royal wedding here.