This ring measures 9.5 on a ring mandrel, and may fit and feel smaller than the mandrel size depending on your knuckle and with finger swelling. Back of ring shank measures 6.7mm wide for reference.
A little info regarding the fit of saddle style rings:
Saddle rings will fit more snug than most rings due to the wider band and the overall amount of metal that is touching your finger. Most saddle rings will fit about about 1/4 to a 1/2 size size smaller than the listed mandrel size.
Please ask any questions prior to purchasing.