Necklace Of The H. H. Maharaja Of Indore (Tucson Gem & Mineral Show - 2013)

This Beauty Contains 374 Diamonds And 15 Emeralds. The Central Emerald Is An Intense Green Color, Is Exceptionally Clear And Weighs About 45 Carats. The Maharaja Of Indore Necklace Owned By The Smithsonian Institution. 

Source

http://csmsgeologypost.blogspot.com/2013/02/report-from-tucson-2013.html