The Israeli president has sent the Duke and Duchess of Cambridge a unique outfit to welcome the birth of the royal baby boy.

President Shimon Peres sent a hat, socks, white shirt, blue tie and trousers set with the message “From Israel with love” printed on the shirt.

The baby, who has yet to be named, was born on Monday afternoon and weighed 8lb 6oz.

Speculation continues as to whether the baby boy will be circumcised like his grandfather Prince Charles.

Jewish communal leaders congratulated the future king and queen on their new birth.

Chief Rabbi Lord Sacks said: “Mazal Tov to the Duke and Duchess of Cambridge on the birth of their son. We wish them blessings, good health, and joy in becoming parents.”

Reform Movement Rabbi Laura Janner- Klausner said: “The Royal family is held in great affection by the Jewish community in this country and the birth of a new prince gives us hope and optimism for the future. We wish the Royal Family ‘Mazel Tov’ on their new arrival.

"May he inherit the Queen's qualities of dignity, decency and hard work.”

Rabbi Danny Rich, chief executive of Liberal Judaism, said: "The birth of any child is an occasion of unsurpassed joy. The birth of this heir to the throne is an opportunity for that joy to spread throughout the country and the Commonwealth. Mazel tov to the whole Royal family!"

The Union of Orthodox Hebrew Congregations sent a message to the royal parents that said: "It gives us much pleasure to offer our heartiest congratulations on the birth of your son. Our wishes are for your Royal Highnesses’ good health, long life and prosperity and to all the Royal Family.

"May the Almighty grant the newborn Royal Prince discerning leadership and wise counsel for the future."

Board of Deputies President Vivian Wineman wished "a hearty Mazel Tov to the Duke and Duchess of Cambridge on having a baby boy.

"We are delighted for them, and indeed the whole Royal Family, and wish that he goes from strength to strength."

Israeli Ambassador Taub added: “Wishing a huge mazeltov to HRH Prince William and Princess Kate on the birth of their baby boy. May he bring much light, love and happiness to all the Royal Family."

Last month, members of the community were disappointed to discover that the Duchess of Cambridge was not Jewish – despite mass speculation sparked by news that her ancestors were called Myers and Goldsmiths.

Doreen Berger, the chairman of the Jewish Genealogy Society (JGS), said: “I have been researching Kate Middleton’s ancestry since it looked like she was getting engaged to Prince William.

“I’ve looked back as far as it’s possible to look back and she doesn’t have a Jewish link at all — it’s just not true. I’m 100 per cent sure.”