Isolated, the Jack of Diamonds represents the postman or, better said, the messenger. It also symbolizes a young soldier or an unfaithful servant (assistant, employee); sometimes a young blond man, traitor and of bad morals.
If the consultant is a young man, it is the announcement of new lovers.
If it is a young girl or a single woman, it is the certainty that, soon, a suitor will make himself known; he will be blond and pretty boy.
If, on the contrary, the consultant is married, he will soon learn of a somebody’s else marriage; but this card, surrounded by it, has many and varied meanings.

The Jack of Diamonds with a
Spade ♠: Treachery, infidelity.
Heart ♥: Certainty of marriage and news of birth.
Diamond ♦: Young risk-taking man, adventurer of misconduct.
Club ♣: Somebody will ask to borrow money from you.

Having on the left a
Spade ♠: A dark man you have every reason to fear.
Heart ♥: Love. Letter coming soon.
Diamond ♦: Null card.
Club ♣: Money that will be lost. Theft.

EXCEPTIONS.
The Jack of Diamonds, with the
King of Diamonds: News from a young adventurous man.
Between two sevens: News of a pregnancy.
Touching the Ten of Diamonds: Distant journey. (The other card touching it becomes null and void.)
Touching the ace of Clubs: News of an inheritance. (The other card touching it becomes null and void.)
Between two face cards: deceit, treachery, infidelity.
Between two aces: The Jack of Diamonds says nothing; he is absolutely silent.

Lawman, widower, a divorced man, man of bad faith, envious person who seeks to harm, a man who wants only sex and does not care a tiny bit about you, evil dark man; here comes the King of Spades. This is one of the worst, if not the worst card in the deck.
You might be better off by not looking into omens that it brings.

Taken in isolation, this King announces:
To a married man: Conflict, law officer, trial.
To a married woman: Temporary, but serious extramarital love affair and interference in your family or relationship. Even though you know that the King of spades is bad for you, you still want him and are unable to resist the temptation. A charming lover will soon turn into a brutal tyrant, who will put an enormous strain on your emotions. If it does not last too long, you might succeed to keep this affair private.
To a single man: Rivalry.
To a young girl: Unfaithful lover.
To a divorced person: Upcoming marriage with another divorced person.
To a widowed person: failure of a relationship that looked like a promising new start.

The King of Spades having on the right a
Spade ♠: Terrible omen. Bad dark man who wants to hurt you and abuse you. The omen is worse if the consultant is represented by a positive and happy card. In the worst it can mean a rape or daily physical and emotional abuse in a relationship.
Heart ♥: Sorrow caused by a divorced man. – Rejection of love, refusal to marry.
Diamond ♦: A lawyer will set a trap for you.
Club ♣: You will be sued soon, and you will lose the case.

Having on the left a
Spade ♠: A greedy and stingy man is trying to fool you.
Heart ♥: Sorrow caused by a divorced man. – Refusal to marry.
Diamond ♦: A lawyer will set a trap for you.
Club ♣: You will soon be prosecuted and you will lose your trial.

EXCEPTIONS.
Between two cards of the same value: Sickness.
Next to the Queen of Spades: Marriage; the other card touching the king becomes a silent; it does not speak. This is a positive card combination, surprisingly.
Between aces: You’ll go to jail.
Between two Aces, IMMEDIATELY FOLLOWED or PREVIOUS by a number of other Spades:
This is the most terrible sign that can be revealed by cards.
The King of Spades, so surrounded, is the man of law and devil of hell who announces to you that you will pass through the hands of justice and you will be completely destroyed. Your death will follow. It will be painful and violent.

This Nine of spades is the worst card of the whole deck.
It is the sign of death.

Its meanings are very varied.
Isolated, this card says: News at night that will tell you about the death of a person. The card is cruel. It does not make any distinction: it can be death of a relative, a friend, an enemy, of an indifferent person, or in the worst – death of your parents or spouse.
According to the accompanying cards its meaning changes a lot.
You will be the judge of that.

Having on the right a
Spade ♠: Sadness for you. – Long illness of a friend.
Heart ♥: Break-up between friends.
Diamond ♦: Bad news.
Club ♣: Death of an man who is just your acquaintance.

Having on the left a
Spade ♠: Dangerous, but not fatal, accident, very slow to heal.
Heart ♥: Death of a close relative you do not love and will inherit.
Diamond ♦: Death of a sincere friend.
Club ♣: Death of an enemy.

EXCEPTIONS.
Near the Ten of Spades: Deadly Disease; the other card that touches the Nine of Spades is null; it does not count.
Between two cards of the same value: Infections disease.
With a heart or diamond face card: A relationship ruined due to illness or addiction.
With an Ace, Seven or the King of clubs, the Nine of Spades has no value; it must then be considered as not drawn from the deck of cards.
Placed between two Club or spade figures, it destroys everything that the other cards have announced and forces the consultant to repeat the consultation.