The Peacock Brooch

Laurence Graff, the founder of Graff Diamonds, is renowned as the "King of Diamonds" for a reason. Few people would dare to construct a peacock-shaped diamond brooch costing a whopping US$100 million, making it the most costly brooch ever manufactured. Graff's claim to diamond domination - and extravagance - is bolstered by this striking statement.

The Peacock Brooch was unveiled at the TEFAF market in Maastricht, where the world's greatest collectors of fine art and antiques congregate to browse some of the world's most valuable things. Few of the exhibits will be able to compete in terms of wow factor or price tag. This priceless bird is encrusted with 1,305 diamonds, including 120.81ct of exceptionally valuable colored diamonds.

Regarded as one of the most expensive pieces of jewelry, The Peacock Brooch is a 20.02ct Fancy Deep Blue pear-shaped diamond. A dazzling rainbow of white, pink, yellow, orange, and even green diamonds fan out from this brilliant blue diamond. The blue diamond centerpiece can be removed and worn separately if you want a more understated design.

Price: $100 million