Scratch and scrimp

General purpose registers are called as scratch pad memories

Depending on the location and the depth of the scratch, yes and no.

Take your stone to a local jeweler and ask for advice about polishing out the scratch. If it's superficial and shallow, the jeweler may be able to polish out the scratch.

If, however, the scratch is visible and deep, the stone may have to be re-cut in order to give it a value, and the new value of the smaller stone may be less than its original value.

no.

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