Material: 10KT White Gold Filled<br />Stone: AAA Cubic Zirconia<br />Color: White/Blue Sapphire/Emerald<br />Wearing Occasion: Party / Wedding / Engagement / Daily wear<br />Gift for: Girl friend / Wife / Mom<br />size 5 = Diameter 15.70mm = circumference 49.00mm<br />size 6 = Diameter 16.51mm = circumference 52.00mm<br />size 7 = Diameter 17.35mm = circumference 55.00mm<br />size 8 = Diameter 18.19mm = circumference 57.00mm<br />size 9 = Diameter 18.89mm = circumference 59.00mm<br />size 10 = Diameter 19.84mm = circumference 62.00mm<br />size 11 = Diameter 20.68mm = circumference 65.00mm<br />size 12 = Diameter 21.49mm = circumference 68.00mm