People reported Tuesday that the 35-year-old American actress was spotted wearing a necklace with the initials "M" and "H" Saturday in Toronto, Canada, where she films Suits.
Markle's gold Maya Brenner necklace retails for about $240. She and Prince Harry have previously shown their affection by wearing matching beaded bracelets.
Prince Harry flew to Toronto to spend time with Markle on Sunday, according to E! News. The British royal completed a 14-day tour of the Caribbean last week, while Markle recently finished filming Suits Season 6.
"[They] wanted to have time alone and to be together," a source said. "Harry has been traveling and wanted to make time to see Meghan. They wanted their time together to be private."
"Harry is still in Toronto but needs to be back in London Wednesday," the insider added.
Markle and Prince Harry were first linked in October, and confirmed their relationship the next month after the actress faced sexist and racist backlash. Prince Harry's brother, Prince William, issued a statement last week in support of his sibling addressing the matter.
"The Duke of Cambridge absolutely understands the situation concerning privacy and supports the need for Prince Harry to support those closest to him," Kensington Palace said.