The Diamonds are a Canadian vocal quartet that rose to prominence in the 1950s and early 1960s with 16 Billboard hit records. The original members were Dave Somerville (lead), Ted Kowalski (tenor), Phil Levitt (baritone), and Bill Reed (bass). They were most noted for interpreting and introducing rhythm and blues vocal group music to the wider pop music audience.

In 1953, Dave Somerville, while working as a sound engineer for the Canadian Broadcasting Corporation in Toronto, Ontario, Canada, met three other young singers. They decided to form a stand-up quartet called the Diamonds. The group's first performance was in the basement of St. Thomas Aquinas Church in Toronto singing in a Christmas minstrel show. The audience's reaction to the Somerville-led group was so positive that they decided that night they would turn professional.

After 18 months of rehearsal, they drove to New York and tied for first place on Arthur Godfrey's Talent Scouts. The prize of being guest artist for a week on Godfrey's show led to a recording contract with Coral Records. Professional musician Nat Goodman became their manager. Coral released four songs, the most notable being "Black Denim Trousers and Motorcycle Boots", written by Jerry Leiber and Mike Stoller.

The next big step was an audition with Cleveland, Ohio, radio disc jockey, Bill Randle, who had aided in the success of some popular groups, such as The Crew-Cuts. Randle was impressed with the Diamonds and introduced them to a producer at Mercury Records, which signed the group to a recording contract.

The Diamonds' first recording for Mercury was "Why Do Fools Fall in Love" (originated by Frankie Lymon and the Teenagers), which reached number 12 in the U.S. as their first hit, and their follow-up hit single, "The Church Bells May Ring" (originally by The Willows), reached number 14 in the U.S.

The Diamonds' biggest hits were 1957's "Little Darlin'" (originally recorded by the Gladiolas, written by Maurice Williams) and "The Stroll" (1957), an original song written for the group by Clyde Otis, from an idea by Dick Clark.

Although they were signed to do rock and roll, Mercury also paired them with jazz composer and arranger Pete Rugolo, in one of his Meet series recordings. The album, entitled The Diamonds Meet Pete Rugolo, allowed them to return to their roots and do some established standards.

The group sang "Little Darlin'" and "Where Mary Go" in the film The Big Beat. They sang the theme song to the 1958 film, Kathy O'.