Gregg 'groggy' herring's ring

Gregg 'Groggy' Herring's Ring is an item obtainable while Deep Sea Fishing. Upon catching this item a tool-tip will appear stating While fishing you find something unexpected.It can be taken to Gregg 'Groggy' Herring in the crows nest above the Fish Flinger's Fisherman on the Deep Sea Fishing platform. This is completes the achievement My Precious!