Sanda Nyun Han, property administrator at Christie's jewellery department, displays a heart-shaped D flawless diamond weighing 37.01 carats during a preview at Hotel des Bergues in Geneva.
Sanda Nyun Han, property administrator at Christie's jewellery department, displays a heart-shaped D flawless diamond weighing 37.01 carats during a preview at Hotel des Bergues in Geneva.
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