Diamond in the Ruff founder Colleen McCarvill is an internationally certified professional dog trainer and behaviour specialist who is sought after by dog handlers and dog trainers across western Canada.Diamond in the Ruff has helped thousands of dogs and dog handlers become better teams using gentle yet effective techniques based on sound research. Unlike other dog training programs, we use our hearts and our minds, not our hands, to treat all levels of problem behaviour and guide your dog toward being a happy, trustworthy companion.Diamond in the Ruff was founded by Colleen to give dog owners a kinder, more cutting edge approach to dog training. Since then we've expanded to offer private and group dog training in a range of short and long-term sessions in Edmonton, Stony Plain, Spruce Grove, St. Albert and surrounding areas. more... See more text