To see diamonds in your dream signify the wholeness of the Self. You may be finding clarity in matters that have been clouding you. Alternatively, it represents vanity, conceit, and your unchanging or unyielding nature. You may be distancing yourself from others.
To receive diamond jewellery in your dream signifies love, commitment and dedication. If you lose the diamond jewellery, then it indicates difficulty in your love relationship. It may also be analogous to financial hardships.
To dream that a diamond is fake suggests that you are trying to be someone that you are not. Alternatively, the dream may indicate that you that you are living beyond your means.
To see a diamond shape in your dream symbolises the many directions that you can take in life. You need to evaluate your goals and how you are going to achieve them.