Labradorite .925 Sterling Silver Ring 5.5

Labradorite .925 Sterling Silver Ring 5.5 Large labradorite gray cabochon with flashes of blue Natural inclusions can be seen .925 sterling silver Size 5.5 on the mandrel. Photo shows 5.25 but I had not set it snuggly. I wear 6/6.5 and can still wear the ring due to the thin band. Purchased new in the 90’s so I guess it is now considered vintage. A qualified jeweler should be able to size the ring.