1. Look at the logo: Chow Tai Fook Jewelry will engrave Chow Tai Fook's logo on the product, including CTF and Chow Tai Fook's English letters. The logo should be clear and complete, consistent with other information on the product.

2, look at lettering: the genuine ctf steel lettering is particularly clear and round, while the fake lettering is particularly small, and the font is a bit crooked and a bit oblique.

3, look at the appearance: the authentic ctf steel seal has uniform lines and neat rows, which looks beautiful; The fake steel seal has different shades, and there are polishing marks on the edge, which looks rough.