Border Collies are naturally intelligent and adept at reading people's expressions, able to accurately understand their owner's instructions, and can drive sheep to move or rotate through eye contact. Their greatest characteristics are intelligence, strong learning ability, high comprehension, easy trainability, gentleness, loyalty, and obedience. Their level of loyalty can be described as shadow-like following. So, which standards determine the high or low price of Border Collies?
　　Border Collie height: male Border Collies have a shoulder height of 18.9-20.9 inches (48.0-53.0 cm); female Border Collies have a shoulder height of 18.1-20.1 inches (46.0-51.0 cm). Weight range: male Border Collies weigh 30.9-44.1 pounds (14.0-20.0 kg); female Border Collies weigh 26.5-41.9 pounds (12.0-19.0 kg). Excess weight should not be mistaken as caused by muscle or bone mass. Any single trait affecting overall balance will be considered a flaw.
　　Although Border Collie coats are divided into rough and smooth types, the market still uses a greater volume of coat as a basis for higher prices. Many people now pursue whether the Border Collie's coat colors are symmetrical and if the "seven whites" are in place. Although this is not sufficient to judge whether a Border Collie is disqualified, it has become an important standard in deciding the price of Border Collies today.