Bvlgari Ring

size-diameter (millimeter)-perimeter (millimeter)

08 -------- 15.1 ----------- 47.5
09 -------- 15.3 ----------- 48
10 -------- 16.1 ----------- 50.5
11 -------- 16.6 ----------- 52
12 -------- 16.9 ----------- 53
13 -------- 17.0 ----------- 53.5
14 -------- 17.7 ----------- 55.5
15 -------- 18.0 ----------- 56.5
16 -------- 18.2 ----------- 57
17 -------- 18.3 ----------- 57.5
18 -------- 18.5 ----------- 58
19 -------- 18.8 ----------- 59
20 -------- 19.4 ----------- 61
21 -------- 19.7 ----------- 62
22 -------- 20.2 ----------- 63.5
23 -------- 20.4 ----------- 64
24 -------- 21.0 ----------- 66

 

Please use an auxiliary (such as thread, silk, paper slip) to go around the area you want to wear ring for a lap, the length is the inner perimeter of the ring for you ,by which you can find the corresponding size of the ring.