It's different. According to public information, the opal in the gold shop is carefully made by professional jewelers, and the opal sold on Taobao is made by machines with different quality. Cat's eye (cat's eye), that is, "golden emerald with cat's eye effect". Also known as "cat's eye", "cat's eye", "cat essence" and oriental cat's eye, it is a rare and precious variety in jewelry, also known as Alexander's cat's eye, which has both discoloration and cat's eye phenomenon.