1. Art auction house: If the red coral you hold is of high quality, you can consider contacting the art auction house for evaluation and auction. Art auction houses generally have professional appraisers who can evaluate the value of your red coral and help you with the auction.
2. Jewelry store or antique store: You can go to the local jewelry store or antique store and ask them if they want to buy red coral. These shops usually have a certain appreciation of jewelry and antiques and can give relatively reasonable purchase prices.
3. Online trading platform: Sales information can be published on some professional online trading platforms or social media platforms. When publishing information, please make sure to provide clear pictures and detailed descriptions so that potential buyers can better understand your red coral.