If you have idle diamonds, you can consider the following ways to deal with them:

1. Sell: If you don't need these diamonds, you can consider selling them. You can sell them to jewelers or second-hand markets.

2. Replacement: If you have other diamond ornaments or other items, you can consider replacing them. This will give you better prices and more choices.

3. Recycling: If you don't want to sell or replace, you can consider recycling diamonds. The recovery price usually depends on the quality and weight of diamonds.