Black Ring
925 Silver 
R197
Size 45.5mm (Approx G)
Size 46.8mm (Approx H)
Size 48mm (Approx I)
Size 48.7mm (Approx J)
Size 50mm (Approx K)
Size 51.2mm(Approx L)
Size 53mm (Approx M)
Size 53mm (Approx N)
Size 55.1mm (Approx O)
Size 56.3mm (Approx P)
Size 57mm (Approx Q)
Size 58.9mm(Approx R)
Size 60.2mm (Approx S)
Size 61.4mm (Approx T)
Size 62.7mm (Approx U)
Size 64mm (Approx V)
Size 65.3mm (Approx W)
Size 66.6mm (Approx X)
Size 67.8mm (Approx Y)
Size 68.5mm (Approx Z)