Little scratch on galaxy s7 glass back panel

Hello,

There is a little scratch on the glass back panel of my gs7, is there any way to remove it/buff it out? I looked through some tips on the internet, so far I tried: baking soda, toothpaste, metal polish, but they didnt work. I ordered a Smitty's Glass Wax off amazon and still waiting for it to arrive, is there anything I can try? The scratches are superficial. If you have any previous experience with solutions/creams/tips please let me know. Thanks in advance.

Al