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.

Bad words, actions, travel.

The Eight of Diamonds having to right, a
Spade ♠: Distant travel without any profit.
Heart ♥: A journey full of pleasure.
Diamond ♦: Efforts without success.
Club ♣: Loss of money.

Having on the left a
Spade ♠: A friend’s slander.
Heart ♥: Wedding trip or trip to the city to attend a wedding.
Diamond ♦: Efforts without success.
Club ♣: Money found.

EXCEPTIONS.
Between two cards of the same value: Travel postponed.
Between two Hearts: Husband and wife will make steps to become closer.
Between two Clubs: Travel for very small inheritance or business gain.
Between two spades or two low cards of Diamonds: unsuccessful efforts.
Between the Queen of Clubs and the King of Spades: Disunion.
Between two Diamond figures; The card is null; it does not speak.

Like the Ace of Clubs, this card is the card of fortune.
Success, abundance, prosperity, unexpected succession, success in everything; such is the meaning of isolated Ten of Clubs.
Regardless of the place it occupies in the game being played, placed next to any card, this Ten is a very positive omen.
Judge for yourself:

Having on the right a
Spade ♠: Inheritance from a distant relative or another unexpected large financial gain.
Heart ♥: Joy. – Success in everything.
Diamond ♦: Gift from a friend.
Club ♣: A substantial sum of money lost, but then recovered with interest.

Having on the left a
Spade ♠: Change of job position. Exciting job prospects.
Heart ♥: Assured and unexpected wealth.
Diamond ♦: A gift from a man who is not from your town.
Club ♣: Money that is not expected.

EXCEPTIONS.
Between two figures of Kings or Jacks: Support of men.
Between two ladies: Rich wedding leading to a rich family. – Sincere friends.
Between a King and a Lady: Protection of married couple. Believe it or not – they care about you much more than you deserve.
Near the Queen of Spades: Money from a widow (or divorced or lone person). The other card with the Ten of Clubs is null; it does not speak.