From theimperialcourt.tumblr.com/tagged/tiara; sepia tone removed and image cropped.
Marie looks lovely in a this lamé-trimmed over-dress with a cape draped over and covering her shoulder. I mis-dated this to ca. 1912. See the next image.
Keywords: 1902, Marie of Edinburgh, Marie of Romania, Missy, Wettin family, Hohenzollern family, Princess, Queen, wavy coiffure, tiara, necklace, earrings, over-dress, square neckline, strap sleeves, cape, jeweled crucifix