More than 20,000 platinum diamond necklaces are very common in the market. Many jewelry brands have many diamond necklaces at this price, and platinum is also a recyclable precious metal on the market. Therefore, when analyzing the recovery price of more than 20,000 platinum diamond necklaces, we mainly analyze the diamonds and the materials used. In the current second-hand market, diamond recycling basically has certain requirements. If the diamond size of this 20,000-odd diamond necklace does not exceed 30 cents, then in most cases, the price is mainly quoted according to its style and material, so compared with the original price, the price difference will be somewhat large.