True or False Diamonds can't actually cut glass?

Answer 1

False

Another Answer

True, in the sense that diamonds can mar glass. A glass-cutter uses a diamond-tipped tool to mark a cut line on glass, then applies pressure to either side of the cut line. This separates the glass where the cutter wants it cut.

Answer 2

False. Diamonds are one of the hardest materials on Earth, which enables them to easily cut through glass due to their extreme hardness.