Mauboussin ring in 18k yellow gold with inlaid mother of pearl. Size 5.25

Mauboussin ring in 18k yellow gold with inlaid mother of pearl. 10mm width. Size 5.25.

This Mauboussin ring is currently size 5.25 and some items can be sized up or down, please ask! It weighs 9.8 pennyweights and is 18k.