Main stone: Measures approximately 8mm x 7mm. Ring: Get a royal blue cubic zirconia ring. Design: Features a stunning blue cubic zirconia crystal which is complemented with clear cubic zirconia stones on each shoulder. Metal: Plated with rhodium. Ring sizes: Choose from K, M, P and R. Gift for her: An elegant ring for the one you love. Royal Blue Cubic Zirconia Ring | Medium | Living Social