But you can't pursue the brand, as long as you ensure that you buy the real goods. Maybe the price of a small brand is more suitable.
How to confirm the authenticity is simple. Buy jewelry in another jewelry store and exchange it with the other party. On the contrary, it is false. I suggest asking more shops and not telling each other where you bought it, so as not to hit the brand and say that you have something.
There is also an old saying that real gold is not afraid of fire, and it is basically true that it cools naturally without stains and discoloration after burning red at high temperature. If the jewelry is not big, the windproof lighter can complete the high temperature procedure.
Satisfied, please adopt.