I don't know that place, but it's almost impossible that the purity of gold is only 30%. I don't think anyone will invest so much money to open a gold shop involved in counterfeit goods, which is not worth the candle!

Of course, I mean that they sell 30% gold jewelry in the name of Qianjinjin (99.9%) and Jinjin (99%). Theoretically, 24K gold is regarded as 100% pure gold, so 18K represents 75% gold and 14K represents 58.5% gold.

Generally, the gold of a bigger store will not be fake.