According to the book, The Engagements by J. Courtney Sullivan, the phrase was coined by:
". . . Frances Gerety, who was a copywriter with the Philadelphia ad agency N.W. Ayer and Son beginning in the 1940s."
The agency client was DeBeers.
Various artists have sung the song Diamonds Are Forever. The original song that was on the James Bong movie was sung by Shirley Bassey.
Considered one of the most popular slogans, the slogan 'A Diamond is Forever' is best associated with DeBeers. The company engraves this phrase on most of the products they sell.
Shakira sings the songs in the Diamonds are Forever commercial.
Jason Bryant and my blabber
This slogan began with DeBeers in the 1930s.
A female marketing executive at DeBeers created the tagline "a diamond is forever" around 1940 ... they have stuck with the slogan and successfully marketed it since that time.
quel est la slogan de diamond bank
The slogan is "Zales: The Diamond Store."
nook
Faith.Fashion.Forever21
Slogans on diamond in hindi?
Forever Young!
Yes, the slogan is "When you can live forever, what do you live for?" It encapsulates the central theme of immortality and searching for purpose in life.
According to Wikipedia, the DeBeers slogan... "A young copywriter, Frances Gerety, coined the famous advertising line "A Diamond is Forever" in 1947, allegedly while she was dreaming." The line may refer to the age of the diamond mineral, which takes, in alluvial mines, from 10,000 years to 1.8 million years to form, according to the KHI Web site. As well, she may have wanted to infer that once the gift of a diamond is received, a promise of 'forever' is implied as a reference for the impending relationship.
faith, fashion and forever 21
The DeBeers Organization uses this slogan. You can see it on their home page, below.