|The Marie Louise Diadem|
|Empress Marie Louise; the necklace and earrings, on display at the Louvre. The portrait depicts the stones in a red tone, though you will also see them colored green.|
|Part of a press release from Christie's auction house. One of the brooches made from the Marie Louise emeralds goes up for auction again in April 2014.|
|The tiara, in its turquoise version|
Turquoise or emerald, which do you prefer?
Photos: Van Cleef & Arpels/Wikimedia Commons/Louvre/Christie's