The emerald was mounted as a broach for Catherine II of Russia. The stone weighs approximately 65 carats, and is accented with rose and old mine-cut diamonds. The estimated price for this little piece is $1 to $1.5 million.
The diamond piece is a cushion-cut gem weighing approximately 39.55 carats. The stone was once owned by Emperor Maximilian of Mexico. The early estimate of auction price is also $1 to $1.5 million.
Christie's Auction Catalog
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