This dainty flower ring is intricately set with several delicate crystals and an elegant and cute flower. Its classic yet trendy design will make you stand out of the crowd. Material: Sterling Silver and crystals. The diameter of the ring is approximately 1.6 cm(U.S size 5.5), and it could be adjusted to around 2.1cm (U.S size 11.5) . Adjustable which is suitable for most fingers. Pls see the 2rd to last image Ring Size Conversion Chart for ring size reference. Durable and allergy free. Yo