In a statement on Instagram, Mr. Farmer said he was committed to learning from the situation. “It was never our intent for the show’s styling to be interpreted as racist or to make people feel uncomfortable, but I now fully understand why this has happened,” he said.

Ms. Davis said she “didn’t even know of the existence of the accessories until I saw them presented at the show.” She met with students after the show, she said, to discuss their concerns.

“I have always taken full responsibility for those matters that are my responsibility, however, I should not be held accountable or blamed for not stopping actions/activity that I did not know existed,” she wrote in a statement.

The controversy began when Amy Lefevre, a 25-year-old model, refused to wear the accessories, which she said had been given to the models just as they were about to walk out for the show. “I let the staff know that I did not want to wear these pieces as they were clearly racist and made me incredibly uncomfortable,” she said in an interview on Sunday. Other models wore the pieces.

Mr. Huang would have let her walk without them, she said, but the director of the show, Richard Thornn, a creative director of NAMESldn, a London-based fashion agency, yelled at student designers to move away and pressured her to wear the accessories.

She said Mr. Thornn told her that she’d “only be uncomfortable for 45 seconds.” But she refused. “I was visibly shaken,” she said.