The value of gold jewellery is generally determined using factors such as gold purity, net gold weight, and the applicable gold market rate. Jewellery may also contain stones, gemstones, diamonds, or other materials, which can affect the final calculation. A professional gold buyer should explain the evaluation process and provide clarity about how the final offer has been calculated. The actual amount you receive can vary depending on the purity, weight, condition, and other characteristics of the item.