Answer
May 07, 2025 - 08:21 AM
Gold necklaces are typically marked with a hallmark that indicates the purity of the gold, often expressed in karats (e.g., 10K, 14K, 18K) or as a percentage (e.g., 750 for 18K gold, meaning 75% pure gold). These marks are usually stamped on the clasp or a small tag attached to the necklace. Additionally, the hallmark may include the manufacturer's trademark or country of origin.
