Some exceptional jewels stepped into the spotlight this week, as Christie’s prepares to sell the jewelry of a woman who married into the Bloomingdale family and a museum in Los Angeles gets ready to display a collection of fancy colored diamonds.

The calendar flipped to December, celebrating three new birthstones, one of which--tanzanite--recently became the topic of a newly published book.

Meanwhile, retailer Tiffany unveiled its holiday windows in New York just before it released the results from its latest fiscal quarter.

See it all and more in The Week in Photos.

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