Butterfly Brooch May Be Worth $680,000 The Smithsonian's National Museum of Natural History are displaying a 77 carat brooch starting March 6, 2013. The "Royal Butterfly Brooch" is made of 2,328 gems, including sapphires, diamonds, rubies and garnets. Officials say it's worth $680,000. Taiwanese jewelry artist Cindy Chao created it in 2009 and donated it, making it the first Taiwanese-designed item in the National Gem Collection. Smithsonian's National Museum of Natural History/AP Photo