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
内圈周长
(毫米)内圈直径
(毫米)日本中国内地香港美国英国,澳洲欧洲
1C41
2D42
42.913 2/33352.5E43
44144463F44
4514 1/355.573.5G45
46.114 2/366.583.5~4G~H46
47.1157894~4.5H~I47
48.215 1/389104.5~5I~J48
49.215 2/3910115J49
50.3161011125.5K50
51.316 1/31112136L51
52.416 2/31213146.5L~M52
53.4171313.514.56.5~7M~N53
54.517 1/3141515.57~7.5N~O54
55.517 2/3151616.57.5~8O~P55
56.518161717.58P56
57.618 1/31718.518.58.5Q57
58.618 2/31819.519.59R58
59.7191920.520.59.5S59
60.719 1/32021.521.510T60
61.819 2/321222210~10.5T~U61
62.82022232310.5U62
63.920 1/323242411V63
64.920 2/324252511.5W64
662125262612X65
6721.42627.52712.5Y66
6821.72728.52813Z67