Victoria Transvaal Diamond Necklace: Museum of Natural History, Washington D.C. 67.89 carats. Look for flashes of color in the 116 facets of this pear shaped, champagne colored diamond. Cut from a 240 carat crystal, it is suspended from a chain of 108 diamonds that total about 45 carats. The necklace was designed by Baumgold Brothers, Inc... INCREDIBLE!