It is not entirely correct to say that a laboratory-grown diamond is a ""fake"" because it has the same chemical and physical properties as a natural diamond. However, it is not a natural radiant cut man made diamond since it is created in a controlled environment rather than formed deep within the Earth's crust.
In my opinion, the decision to purchase a natural or laboratory-grown diamond depends on personal preferences, values, and budget. Some people may prefer a natural diamond due to its rarity and the perception of higher value, while others may prefer a laboratory-grown diamond due to ethical and environmental concerns or cost considerations.
You can buy laboratory-grown diamonds from various online retailers and some physical jewelry stores. Be sure to research the seller's reputation, certifications, and return policy before making a purchase.