This iconic slogan was created by De Beers in 1948 and has since become a timeless expression of love and commitment. The phrase is a reminder that a diamond is a symbol of eternal love and devotion, and that the bond between two people is something that will last forever. It is a reminder
From Wikipedia
De Beers Group is a British multinational diamond company that specialises in the mining, trading and marketing of diamonds. The company is active in open-pit, underground, large-scale alluvial and coastal mining. It operates in 35 countries, with mining taking place in Botswana, Namibia, South Africa, and Canada. It also has an artisanal mining business, Gemfair, which operates in Sierra Leone.