Nope! A diamond is the hardest substance on earth so only a diamond can scratch a diamond!
Diamond is the hardest mineral that can scratch a steel knife or window glass.
A mineral that will scratch with a window glass but not with a knife blade is a mineral with a hardness between 5.5 and 6.5 on the Mohs scale, such as orthoclase or peridot.
A diamond can scratch a diamond, but one diamond cannot scratch itself.
No. Only a diamond can scratch another diamond.
No as a diamond is significantly harder then any knife material thus trying to do so would likely result in the knife edge being ruined. Although softer then diamond, this is the same reason granite or stone cutting boards shouldn't be used.
Yes: not a good use for a diamond, but yes, a diamond will scratch a nail.
Yes, in fact, it is the only way to scratch a diamond.
Diamond is harder than steel: you can scratch steel with a diamond, but steel will not scratch a diamond.
noNo other way around
Diamond will scratch everything, including diamond.
Diamond
A diamond can only be scratched by another diamond due to its hardness. No other material is hard enough to scratch a diamond.