How diamonds became the de facto engagement stone
Spoiler: It’s less about romance and more about marketing

Read more about the history of engagement diamonds:
How diamonds became forever (New York Times)
Have you ever tried to sell a diamond? (The Atlantic)
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- How to buy an engagement ring — a man's guide
- Plagiarism: An abbreviated history
- The science of making a guitar sound like a human voice
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Carmel Lobello is the business editor at TheWeek.com. Previously, she was an editor at DeathandTaxesMag.com.
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