Fang Chopin's chain is brighter. According to official website, a famous jeweler, the round Chopin chain is the same as the square Chopin chain, but the round Chopin chain is more compact, while the square Chopin chain is less compact and more shiny. Chopin chain has nothing to do with musician Chopin. It is a kind of braided chain, which originated in Italy, and its specific styles include hollow Chopin chain.