Contact your flooring manufacturer and inquire whether they have scratch-repair kits available for your Brazilian cherry flooring. Many manufacturers have these kits available for purchase either directly through them or at select retailers.
Color the scratch with the closest matching stain marker or stain you can find if the flooring manufacturer doesn't have repair kits available. Many stain manufacturers make stain markers, or you can purchase a small can of stain that matches your floor. Use this method only if the scratch is a surface scratch.
Fill the scratch with a closely matching wood putty if the scratch goes down to the raw wood. Allow the putty to set as directed on the instructions.
Color over the putty with a touch-up marker if the putty doesn't match properly.