Make a sweet statement with these playful duck design studs, featuring London Blue Topaz in a shiny gold-Plated finish. These yellow gold stud earrings designed for babies, featuring a duck shape with a round-cut birthstone accent and a pear-shaped blue topaz stone body. The earrings have a screw-back closure, which is common for children's jewelry to provide extra security. Topaz is known as a "cooling crystal" for its unique ability to cool down after exposure to hot temperatures. Topaz ranks eight on the Mohs hardness scale making for great hardness and regular jewelry wearing. Topaz comes in nearly every color in the rainbow, but blue topaz is the most prominent.