Celebrity engagement rings continue to fascinate fans by the sheer size and cost of these tokens of love. But who's worn the most expensive?
The extremely rare, 10-carat Mediterranean Blue diamond could fetch a whopping $20 million at Sotheby's High Jewelry auction ...
After careful consideration, we rounded up the best places to buy engagement rings: Our top pick overall is Blue Nile, which pairs an impressive diamond selection with first-rate customer service.
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