Ancol Heritage Diamond Dog Collar Ancol Heritage Diamond Dog Collar – The Ancol Heritage Diamond Leather Collar is produced in a time-honoured design and also embellished with a quilted diamond pattern that is stamped into the leather; an ornate addition to a classic collar. Each collar is stamped with the ‘Heritage’ mark that indicates Ancol’s leather history and also assures our customers that the collar has been made by our skilled workforce in the UK. This robust collar is made from the finest-quality bridle leather making it both supple and strong. This ensures longevity and your dog’s comfort. Completed with a satin-finish buckle and D-ring for easy removal and lead attachment. Due to the popularity of the Ancol Heritage Diamond Leather Collar there are four traditional colour options: Black, Tan, Red and a Brown.