Glass tabletops can be beautiful; however, like any other regularly used piece of furniture, they can be marred by scratches from cleaning and other general use. Although a deep scratch will have to be removed by a professional, there is something you can do to repair some of the little blemishes that result from day-to-day use.
Spray the glass thoroughly with glass cleaner and dry it with a lint-free cloth.
If possible, remove the glass from the table and lay it on a secure, flat surface.
Apply a gently abrasive compound like white toothpaste (do not use gel) to the scratch.
Gently rub the toothpaste in a circular motion over the scratch.
Wash off the toothpaste and check the glass from time to time. If the glass seems to be getting cloudy at all, stop the process.
Be prepared for polishing out the scratch (depending on its depth) can take some time. However, if the blemish doesn't seem to be improving, it is time to call a professional glass buffer.
You can avoid scratches in your glass tabletop while still showcasing its beauty by using table runners. Use a protective covering anytime you are doing work on it that may be damaging.