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1. L’Incomparable Diamond Necklace

Weighing in at 637 carats and valued at $55 million, the L’Incomparable diamond necklace has set the world record as being the most valuable necklace in the world. The Incomparable diamond was discovered more than 30 years ago by a young girl when it was an 890 carat by-product of a diamond mining. It took the Mouawad Jewelry Company 4 years to polish and craft the yellow-shaded diamond into a necklace. The necklace, set in 18 carat rose gold, is crafted from 91 diamonds of various cuts, one of which is a 229. 52 carat white diamond.