Doesn't mean you don't have to pay taxes if you can't open it. Jewelry is one of the 20 dutiable items, so even if it is less than 5,000 yuan, if it is found to be brand-new, it must be taxed. So many people take the bag apart and put it on and say it's not new. Usually nothing will happen.
These brands in Hong Kong buy gold ornaments in chains, which are basically 80% of the mainland price, and they are of good style and high purity.