It wouldn't be the first time. The practice of giving diamond engagement rings was a result of a very clever marketing campaign by De Beers ("diamonds are forev

It wouldn't be the first time. The practice of giving diamond engagement rings was a result of a very clever marketing campaign by De Beers ("diamonds are forever"). https://blog.hubspot.com/marketing/diamond-de-beers-marketing-campaign https://blog.hubspot.com/marketing/diamond-de-beers-marketin...