Lab created diamonds and natural diamonds both look like each other. They have the same characteristics, chemical and physical properties. The main difference between them is where they are formed. Lab created diamonds are crafted in laboratories with methods like HPHT and CVD within couple of weeks. Natural diamonds take millions of years to form through geological processes. The manufacturing process of created lab diamonds is environment friendly and highly sustainable. Hence there is a rise in the demand of synthetic diamonds. The price of man-made diamonds is less than that of natural diamonds. It is impossible to tell the difference between the two visibly, hence certification is what matters here. The factors that are considered in both while making a buying decision are price, look, 4C’s, sustainability and value.