Ten/Ten collaboration gives us diamond engagement rings with a twist - The Jewellery Cut
De Beers Said to Cut Diamond Prices as Much as 9% - Bloomberg
Modern Love: The Invention of the Diamond Engagement Ring
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The engagement ring market: how jewelry brands are proposing to modern consumers
How an Ad Campaign Invented the Diamond Engagement Ring - The Atlantic
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The short history of the diamond engagement ring
The Myths About Engagements: De Beers & Diamonds
Will Lab-Grown Diamonds Replace the Real Thing?
De Beers' History Engagement Ring Origins - BAUNAT
Diamond: What Lies Within an Unbreakable Gem