To avoid having to write the names of the countries as I give the meanings to the cards, I will shorten them to…
B = (Bulgarian), P = (Polish), R = (Romanian), and S = (Scottish)

The Diamonds:

Ace of Diamonds:
B: Upright: money, large sums of money, property, investments, wealth
Reversed: poverty, lack of money, financial loss
P: letter
R: letter, message, news
S: money

Seven Diamonds (Romanian only) -Nine of Diamonds (all the others)
B: small winnings, lucky money, small profits, finding money, savings
P: small money
R: good words, pleasant or constructive talk
S: gift

Ten of Diamonds:
B: journey towards money or meeting a person, journey to business
P: big money
R: money or gift
S: wish

Jack of Diamonds:
B: young man with fair hair and blue eyes
Ego is blown up, wants people to like him, spends and gives money away only for people to like me
P: young men, bachelors with light blond hair
R: young men with fair hair and blue eyes
S: young males or females

Queen of Diamonds:
B: female with fair hair and blue eyes
Can be a foreigner or stranger, loves people with money, when money stops she leaves, light hearted
P: women with light blond hair
R: women with blue eyes
S: women

King of Diamonds:
B: man with fair hair and blue eyes
Aggressive and vulgar when he is provoked, nice person but has a bad character
P: elder man with light blond hair
R: man with fair hair and blue eyes
S: man

Bulgarian Card Meanings:

Ace of Diamonds: Upright: money, large sums of money, property, investments, wealth
Reversed: poverty, lack of money, financial loss
Nine of Diamonds: Small winnings, lucky money, small profits, finding money, savings
Ten of Diamonds: Journey towards money or meeting a person, journey to business
Jack of Diamonds: Young man with fair hair and blue eyes
Ego is blown up, wants people to like him, spends and gives money away only for people to like me
Queen of Diamonds: Female with fair hair and blue eyes
Can be a foreigner or stranger, loves people with money, when money stops she leaves, light hearted
King of Diamonds: Man with fair hair and blue eyes
Aggressive and vulgar when he is provoked, nice person but has a bad character

Polish Card Meanings

Ace of Diamonds: Letter
Nine of Diamonds: Small money
Ten of Diamonds: Big money
Jack of Diamonds: Young men, bachelors with light blond hair
Queen of Diamonds: Women with light blond hair
King of Diamonds: Elder man with light blond hair

Romanian Card Meanings:

Ace of Diamonds: Letter, message, news
Seven Diamonds: Good words, pleasant or constructive talk
Ten of Diamonds: Money or gift
Jack of Diamonds: Young men with fair hair and blue eyes
Queen of Diamonds: Women with blue eyes
King of Diamonds: Man with fair hair and blue eyes

Scottish Card Meanings:

Ace of Diamonds: Money
Nine of Diamonds: Gift
Ten of Diamonds: Wish
Jack of Diamonds: Young males or females
Queen of Diamonds: Women
King of Diamonds: Man