Large female Black Diamond x Leopoldi stingray

She is 6+ years old, symmetrical patterns, and eclipse spotting. Between 20 and 22 inches, could be pregnant because last week came home to some nice breeding marks and a sperm plug in the tank, but no guarantees. Eats shrimp, smelt, and pellets. Asking $1800 or best offer. She is the middle one in the picture. Located in London.