Elegant earrings with multicolor crystals. Perfect for adding sparkle to any outfit. Kurt Geiger Rainbow Small Eagle Stud Earrings NWT. The Crystal Eagle Earrings feature a gold earring with rainbow colour crystals. Gold tone stud branded backing. Material: 80% Brass, 10% Enamel, 5% Glass, 3% Titanium, 1% Cz Stone. Brand new with dust bag.