The cost of a chinchilla in the UK typically ranges from around £120 for standard grey chinchillas purchased at pet stores, up to £700 or more for rare colours or breeder-quality chinchillas. Specialized breeders offering show-quality or rare mutations can charge significantly higher prices, sometimes exceeding £3,500. Initial setup costs for housing, food, and accessories often add £350 or more, with ongoing monthly expenses around £30-40.