Blazon
Quoting Woodward: Azure a saltire Argent on a canton the arms of the Diocese of Auckland. Meaning; A blue (azure) shield  on which is a silver (argent) saltire or 'X' shaped cross. A canton is a small square on the top left and this has the Arms of the Diocese of Auckland which is three silver stars on a blue background.

Source: NZ Anglican Church Clerical Directory 2005/2006 edition
Clerical Directory header
PDF at 23
Both accessed 31 Jan 2006