Use a magnifying glass to distinguish.
Real pearl fish skin has beads arranged neatly and tightly and seamlessly, while fake skin has beads arranged irregularly, sparsely and with gaps. If you observe carefully with a magnifying glass, you can tell the difference.
Pearl fish leather shoes are leather shoes that make full use of the pearl-like spots on the deep-sea pearl fish as leather shoe fabrics. Pearlfish leather shoes are generally expensive, and there are very few manufacturers that can produce them in the domestic market. This is not only because pearlfish are relatively rare and only survive in specific sea areas.