日本基准的戒指尺寸与中国内地,香港地区的戒指尺寸存在一定的差异。请参考以下的表格<br>内圈周长<br>(毫米)内圈直径<br>(毫米)日本中国内地香港美国英国,澳洲欧洲<br>1C41<br>2D42<br>42.913 2/33352.5E43<br>44144463F44<br>4514 1/355.573.5G45<br>46.114 2/366.583.5~4G~H46<br>47.1157894~4.5H~I47<br>48.215 1/389104.5~5I~J48<br>49.215 2/3910115J49<br>50.3161011125.5K50<br>51.316 1/31112136L51<br>52.416 2/31213146.5L~M52<br>53.4171313.514.56.5~7M~N53<br>54.517 1/3141515.57~7.5N~O54<br>55.517 2/3151616.57.5~8O~P55<br>56.518161717.58P56<br>57.618 1/31718.518.58.5Q57<br>58.618 2/31819.519.59R58<br>59.7191920.520.59.5S59<br>60.719 1/32021.521.510T60<br>61.819 2/321222210~10.5T~U61<br>62.82022232310.5U62<br>63.920 1/323242411V63<br>64.920 2/324252511.5W64<br>662125262612X65<br>6721.42627.52712.5Y66<br>6821.72728.52813Z67