The featured diadem measures 1-7/8" in diameter. Diameter is the distance across the center of the diadem. Our Diadems, like our crowns start as brass stampings and findings. These pieces are rivotted together and then heavily 24K gold electroplated. The final step in the manufacturing process is the hand setting of the genuine Austrian Swarovski crystals that adorn the diadem. While our diadems are made to fit specific statues, other diameters are available and still others can be special ordered. If you have ANY questions, please call us toll free 866-313-2343 and we will help where ever possible.