Golden Dew pearl necklace

An acquaintance bought this at a department store several years ago for around 2 million won, but I am sending it to you because I already have a pearl that I received as a wedding gift. I heard the clasp is silver now, but this one is 18k gold. It measures approximately 6.3 to 6.4 or 6.5 millimeters. It has only been kept in storage, so the condition is excellent. The department store also confirmed that it is in good condition. There is no warranty certificate, but the engraving confirms its authenticity. Please take it at a good price. The total length is 42 centimeters.