Nowadays, there are many counterfeit products in the jewelry industry, and you don't have an experienced jewelry appraiser, so it is difficult to accurately estimate the real price of your jewelry. Because it is a ring, many people will choose to buy it back and wear it or give it away. When I bought it, the price was very different from the current price, and the second-hand goods were not very valuable. As far as the current economic situation is concerned, people like this "pledge of love" will choose a new one, which is unique in their eyes. Because this kind of thing has different meanings, your ring is of low value. Therefore, it is best not to exchange diamonds and platinum at equal value (not just platinum). Might as well spend money on a new one. It is more appropriate to keep this diamond as a souvenir now. If you really insist on exchange, I suggest you visit several famous jewelers to help you identify the value of your diamonds, and then go to the market to find platinum with the same value as diamonds, so that you can learn the knowledge of identifying the authenticity of jewelry and accumulate experience for buying jewelry in the future.