On Wednesday, July 31, Stone, 66, uploaded a photo of herself posing in an elevator with what appeared to be a black left eye. Stone, who suggested in a follow-up post that she is currently vacationing in Turkey, wrote in a caption to her original photo showing the apparent injury, "This trip has been tough; but I'm tougher 🤪."
In the follow-up post, Stone shared a photo of a private in-ground pool with an adjacent large patio and grassy area. "If anyone is considering Turkey for a vaca - this is the backyard of my hotel room 😵💫❤️," she wrote in that caption.
Representatives for Stone did not immediately respond to PEOPLE's request for comment regarding the photo.
Stone has been on a European summer trip in recent weeks, sharing posts and updates to Instagram from Italy's Taormina Film Festival -- where she received a lifetime achievement award -- Cannes, France and Rome. Just one day before Wednesday's post showing off the apparent black eye, Stone shared a photo of herself and her son Laird, 19, as they walked together in Rome.
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"Walking in the streets of Rome w my son before he leaves for pre med school 🥰," the actress wrote in the caption to that post.
Stone recently spoke to her experiences in the film industry while she accepted that lifetime achievement award in Taormina, Italy, on Friday, July 19.
"I just have to say now that women are writing, producing, and are more and more a part of filmmaking, and films are less about men writing about their fantasies of the way women are and actors asked to portray the male fantasy, and the critics are less asked to tell us if we fulfill the male fantasy, or not," she said during that appearance. "That film is so changed from whether women are fulfilling the written, directed, produced, edited, and criticized... if we'd have met with a male fantasy, and now it's more about: are we fulfilling this human condition?"