Not a photo, I dare say a painting, an artist's impression. I cannot recognise the crown, I suppose it is the crown made for Mary, consort of KG5. I wonder if this is part of the current crown jewels.?
The principal crowns for Queens consort are those made for Mary Modena wife of james2 and a diadem for her. The crown made for Mary consort of KG5 Then the crown for the present Queen and the small and modest crown of QV.