By Michelle Graff

The week began with a bit of news from late last week: the headlining stone at Sotheby’s New York Sept. 22 jewelry sale--a 27-carat oval-shaped diamond--failed to find a buyer, making a Bulgari ring set with a 24.72-carat sapphire the sale’s top lot. That ring went for $706,000.

Also this week, Gemfields announced its fiscal year results, we found out that a 9,381-carat blue topaz was going on display at a London Museum, and Lucapa found another huge rough diamond at its Lulo mine in Angola.

See it all and more in The Week in Photos.

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