Repairing a chip in rim of crystal goblet
Pictured is a valuable Waterford crystal goblet with a small chip in the rim.
Note that the chip is on the inner surface of the rim and has not affected the "line" of the rim.
I have a Dremmel with diamond grinding bit but wondered if anyone can advise how to slowly and gently grind and polish the chip away (without destroying the cup).
Obviously it will always be detectable to the mouth but I want it to be usable and safe from cutting anyone's lip.
How good a job could I do...and how?