Lost Tiffany style engagement ring

Round diamond with small clusters either side white gold engagement ring. Last had my engagement ring when out in foleys bar baggot street. Got a taxie from there to stoneybatter and haven't seen it since ( August 14th) generous reward if found and returned. Thought I would find it in the house but after lifting the floorboards and skirting boards no luck :( last hope is that it fell off in Dublin city that night or in a taxie!