A high quality dupe is an imitation or copy of a product, usually of higher quality than the original. The term is often used when referring to makeup, skincare, and beauty products, although it can be used loosely to refer to any type of item. High quality dupes are made with premium ingredients and offer comparable results to their high-end counterparts. They are often much more affordable than the original, making them an attractive alternative to those looking for a high-end product without the hefty price tag.