 The Bismarck Sapphire Necklace is a 98.6 carat table cut sapphire necklace designed by Cartier in 1935. |  |  The Carmen Lúcia Ruby is a 23.1-carat Burmese ruby set in a platinum ring with diamonds. |
 The 30.62 carat Blue Heart Diamond was faceted from a 100.5 carat rough. |  The DeYoung Red Diamond is one of the largest known natural fancy dark red diamonds. |  The Hooker Emerald is 75.47 carats. |
 The 58.19-carat Maharani Cat’s Eye. |  Pink diamond of 2.90 carats. |  Hope Diamond |
 96-carat amethyst. |  The Hall Sapphire Necklace, designed by Harry Winston. |  Diamonds weigh 14.25 and 20.34 carats and are set in earrings that belonged to Marie Antoinette, the Queen of France. |
 | The Petersen Tanzanite Brooch. Pair of matched tanzanite gems about 30 carats. The Sherman Diamond is one of five pendants from a diamond necklace. |  |
