Miss World 2015, Mireia Lalaguna of Spain bestowed the iconic crown and sash to Del Valle at the MGM National Harbor in Oxon Hill, Maryland.
Del Valle is a pre-law and communications student at Pace University in New York City. She said it was an "honor and a great responsibility" to represent her island on an international stage.
The first runner-up was also from the nearby tropics, she was Yaritza Miguelina Reyes Ramirez of the Dominican Republic. She was followed by Natasha Mannuela from Indonesia.