GIA (Gemological Institute of America): certifies diamonds. It appears as a certification for the diamonds on the watch. Removing it would change the claim about the diamonds' authenticity. It acts as a quality assurance mark.
On-screen text
1 OF 1 1.2M DIAMONDnWATCH! ⌚nEvery single diamond onnthis watch is fully GIAncertified bro! 💎
Original caption
1 OF 1 1.2M DIAMOND WATCH! ⌚
Every single diamond on this watch is fully GIA certified bro! 💎 #IceOut #LuxuriousWatch #GIAKimCuong #MaziVs #WatchCollector