I have bought it for ten years. I wonder if your certificate is still there. Idle diamonds can be recycled and valued. In fact, diamond ring recycling is to recycle the diamonds embedded in the diamond ring. Usually, diamonds under 20 cents have no recycling value, and only a few hundred yuan can be recycled. The specific final diamond ring recycling price is determined according to the 4C grade of the diamond, that is, the weight, color, clarity and cut of the diamond. The higher the grade of diamonds in all aspects, the higher the recycling price of diamond rings.