What to expect for Meghan Markle's wedding dress

Ralph & Russo, the fashion line behind Markle's engagement photo dress, is among the front-runners for the coveted assignment.
3:05 | 05/18/18

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Transcript for What to expect for Meghan Markle's wedding dress
You look great either way. You know, we really want to see what Meghan is going to wear tomorrow. That's what we're talking about. We're back here. One of the things leaving us in suspense, Meghan's dress. This morning we're getting big clues about what she may wear for her big day. Who better to ask than Deborah Roberts on castle hill. Deborah, whattas experts saying. Hey, well, robin, that is the million dollar or should I say multimillion dollar question because if you think about all the facets to Meghan Markle she's American born, she worked in Canada and now she has big ties here in London so what designer could pull all of those threads together? And some are wondering whether her character on "Suits" might offer one of the biggest hints. The royal wedding is finally a day away. But two big questions remain, who will be designing Meghan's gown and what will it look like? Who the dress might be is an industry in itself. A guessing game. Yes, a guessing game. Reporter: But Vanessa has a few ideas. Designers we have some speculations on and there are a few names. Reporter: Names being tossed around. Christopher Bailey behind British brand burberry. One of Meghan's closest friends, Markus Anderson who we saw by her side has been seen going into top secret mightings with burberry executives. Stella Mccartney, erdem and Roland Mouret. Ralph & Russo is another brand that will be discussed. The only British brand with a couture brand with a bridal range. And she wore the dress already for her engagement. Absolutely. Any designer that is doing the dress on the big day will have to have signed a strict nondisclosure agreement and with Ralph & Russo they've actually had to move their external pr company in-house. Reporter: Perhaps Meghan herself giving us the biggest insight in a 016 "Glamour" magazine article saying she helped pick a princess-like wedding dress for her "Suits" character Rachel Zane but that isn't a dress she would pick for herself saying her perfect wedding gown is whimsical or subtly romantic and will most likely wear two dress, one for the ceremony and one for the reception just like princess Kate did. Whatever she wears it's sure to be copied by women around the world hoping to get what's been dubbed the Markle sparkle. And, I good morning, I'm doing my best to honor the Markle sparkle. I know you are and Paula and Adrienne are all doing it. We got to have our little sparkle here, right? Got to have a little fun. That looks good. That looks great. I want to see yours. That is so perfect. That's so perfect, deb. Did you have that made -- American made, Christine Moore. A little shoutout. Uh-huh. That's right. Now you don't have to pay for it. You got a shoutout. Hey, thank you so much,

This transcript has been automatically generated and may not be 100% accurate.

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