Features: Material: copper, zircon, artificial colorful stone Color: colorful/royal blue Size: 6-10 Gender: Female Style: classical High Polish Inner Surface,Smooth and Light, Great Wearing Feeling. Good accessories for wedding, party, etc. Notice: 1.Due to the different monitor and light effect, the actual color maybe a slight different from the picture color. 2.Please allow slightly differs due to manual measurement. Size Diameter Circumference 6: 16.5mm 52mm 7: 17.4mm 55mm 8: 18.2mm 57mm 9: 19mm 59.8mm 10: 19.9mm 62.4mm Size Chart Size: : 6 Diameter(mm ): : 16.5 Circumference(mm): : 52 Size: : 7 Diameter(mm ): : 17.4 Circumference(mm): : 55 Size: : 8 Diameter(mm ): : 18.2 Circumference(mm): : 57 Size: : 9 Diameter(mm ): : 19 Circumference(mm): : 59.8 Size: : 10 Diameter(mm ): : 19.9 Circumference(mm): : 62.4 includes:1 x Ring