As for the stubborn stains on Cartier ring, I suggest that you let a professional jewelry repairman help you clean it, or you can renovate the ring as a whole to eliminate scratches. Goldsmith Royal Luxury Maintenance Center is a well-known one-stop luxury service organization in China. Royal Goldsmith has a professional jewelry repairman who can help you clean and repair Cartier rings professionally.

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You can call Royal Goldsmith's national toll-free customer service hotline directly, or click Royal Goldsmith's online customer service in official website to find out the detailed methods and costs of cleaning, repairing and maintaining Cartier rings. Goldsmith has branches in Beijing, Shanghai, Nanjing, Hangzhou and Xi.