Answer
May 30, 2025 - 08:06 AM
Gold necklaces are typically marked with a hallmark that indicates the purity of the gold, often expressed in karats (e.g., 14K, 18K) or as a percentage (e.g., 585 for 14K, 750 for 18K). These markings can also include the manufacturer's trademark or country of origin. The hallmark is usually found on the clasp or a small tag attached to the necklace.
