The Basic Meaning of the Jack of Diamonds The Jack of Diamonds is usually representing a younger, business-minded man who is creative. Often they are salesmen or promoters of some product or idea and always are involved in the world of business or finance. Either a person of this description will play a major role in your life when this card is present or you will be manifesting these qualities yourself. For this reason, the Jack of Diamonds is considered to be a card of great financial success, especially success through promoting or selling, or otherwise being very creative in your business. On the other hand, if you know some man who is a Diamond Birth Card, this Jack could mean that he will be playing either a romantic, creative, or dishonest role in your life at this time. Text Copyright 1996 by Robert Camp - all rights reserved.