1, different in nature: Christie's is one of the world-famous art auction houses; Guardian is a comprehensive auction company which mainly deals in China cultural relics and artworks.

2. Different business scope: Christie's auction house deals in works of art all over the world, including jewelry, jade, watches, paintings, books, furniture, wood, ceramics, wine, stationery, sculptures, etc. Guardian Auction House is a comprehensive auction company that mainly deals in China cultural relics and artworks, involving auction, exhibition, appraisal, storage, exchange and evaluation.

3. The headquarters address is different: Christie's headquarters is located in London; Guardian is headquartered in Beijing.