Nanyang golden beads refer to pearls with a diameter of 9~ 15mm, the largest one is 18mm, and even the rare one is 21mm. However, the size of golden beads below 7mm is small, which does not meet the standard of Nanyang golden beads. Nanyang Golden Pearl is a kind of precious jewelry, mainly produced in Southeast Asia, such as Indonesia and the Philippines. Nanyang Zhu Jin is highly sought after by jewelry lovers because of its large size and high quality.