A rare square 37-carat ... of Diamonds." "Emeralds are hot right now, and this one ticks all the boxes," said Christie's EMEA Head of Jewellery Max Fawcett. "...We might see an emerald of this ...
A 3,187-carat Yubileiny emerald was found there last year. The Kaliningrad Amber Factory held its first emerald auction this year and sold 50 kg of rough gemstones for about $1 million.
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