As a result of the unfortunate accident, a little "shell" (chipped glass) have appeared on the rim of the vase. It would be a pity to give up on this beautiful vessel for such a trivial reason. Currently, thanks to special conservation measures, we are able to fill the defect in such a way that the damage will be almost imperceptible. We're also fixing similar chipping on glass boards, mirrors, lamps, etc.
Another example of the similar repair: