The gem arrived at London’s Natural History Museum where it is to be displayed in The Vault.
At 110-carats, the Cora Sun-Drop is roughly the size of a woman’s thumb and is largest vivid yellow pear-shaped diamond known in the world.
Its unusual yellow colour stems from the very small percentage of nitrogen within the carbon structure of the stone.
Diamonds with a strong saturated colour represent only a tiny percentage of all natural diamonds, and when it more than 100 carats, it takes on a historic significance as so few exist.
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