People are hoping Meghan Markle's wedding dress could include pieces of Princess Diana's dress from 1981 - here's what that could look like

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Meghan Markle has kept her wedding dress plans under tight wraps.

• Meghan Markle's wedding dress remains a mystery, but plenty of rumors are swirling.
• Some rumors have included the possibility of Markle paying homage to Princess Diana with her wedding attire.
• Meghan Markle and Prince Harry are getting married on May 19, 2018.

Meghan Markle's wedding dress remains a mystery.

Markle is expected to wear a traditional gown with a unique detail for the royal wedding on May 19.

Rumors around which designer she'll choose and how much money it will cost are swirling - including the rumor that it might include pieces of Princess Diana's 1981 wedding dress that was worn during her ceremony.

The list of potential designers for her wedding dress include Markle's friend and designer Roland Mouret - whose line of wedding dresses includes seemingly simple designs with structured lines. Israeli designer Inbal Dror has also been speculated. Dror's 2018 collection incorporates more lace, sheer fabric, and gems than Mouret's. Rumors of Burberry's Christopher Bailey designing the royal wedding dress have also been discussed.

Markle may very well wear wear two wedding dresses - changing into something slightly more casual after the ceremony. This move would echo Kate Middleton's dress change during her wedding in April 2011.

Rumors have also been flying that, like Markle's engagment ring - which includes two stones from Princess Diana's collection - Markle's dress or floral bouq might reference Princess Diana.

Below, take a look back at Princess Diana's wedding dress.