Indication of how rings fit, see description below

For many designs shown on these pages the dimentions of the style with change with the size and shape of the main stone chosen, also the design may be scaled up or down according to size required.

Many of the rings have a deep profile at the front but the shank is narrow at the back, as shown in the photos here.  This allows for the rings to be worn either way up.  As the ring fits snugly at the base of the finger; the length at the front extends toward both the knuckle of the finger and the knuckle of the hand.  As such a ring with a height at the front given as 26mm will extend approximately 13mm towards the finger knuckle.  Thus you don't need long fingers to wear the larger designs.