This is obviously not a piece of jewelry, but I couldn’t resist.
That, ladies and gentleman, is The Beau Sancy.
Formerly the property of the Royal Family of Prussia, The Beau Sancy is a modified pear double rose-cut diamond weighing 34.98 carats. It is K Colour, Faint Brown, SI1 Clarity. Please see the Sotheby’s listing for a long and impressive description of this beauty’s provenance.
This marvelous stone was sold as part of Sotheby’s May 2012 Magnificent Jewels sale. All images and info are thanks to Sotheby’s.