Do you need a replacement chain, why not order via Incy Wincy Keepsakes.
 
Chains:  925 Sterling Silver Snake Chain, 925 Sterling Silver Trace Chain, 925 Sterling Silver Belcher Chain (+£20) and 925 Sterling Silver Ball Chain (+£10).
 
Sizes: Snake Chain, Trace Chain and Belcher Chain come in 16", 18" and 20". Ball Chains come in 18", 20" and 22".