According to records in the Tien Kung K'ai, pearl collecting was practiced during the Sung dynasty (960-1279). Then, pearl fishermen in Kwangtung province, dove deep in search of elusive pearl oysters.
遠在西元一○八二年，南宋人龐元英所作著的「文昌雜錄」，便記載著古人將小圓石或人造珠置入大蚌中，再將蚌放回水中，經兩年即成珠。