Rim is just under 3cm and the actual opening is just over 0.75cm. The stopper itself is 5.5cm long and just over 1.5cm wide at widest point. Condition is'Used' - The gilt patterns are faded and there are some inclusions to the glass such as black marks within the glass and bubbles. Also 3 sort of indents within the glass on the stopper which are also manufacturers inclusions.