Pectoral with the Name of Senwosret II

Pectoral with the Name of Senwosret II, and Necklace of Sithathoryunet
ca. 1897–1878 B.C.E.; Dynasty 12, reigns of Senwosret II–Amenemhat III; Middle Kingdom
Gold, carnelian, lapis lazuli, turquoise, feldspar, garnet; width of pectoral 3 1/4 in. (8.3 cm)
Purchase, Rogers Fund and Henry Walters Gift, 1916, MMA 16.1.3
Necklace, MMA 16.1.4

Guy Brunton's Lahun I gives a grayscale view of the back.

This cloisonné pectoral is inlaid with 372 carefully cut pieces of semiprecious stones. It is composed around the throne name of King Senwosret II and was found among the jewelry of Princess Sit-hathor-yunet in a special niche of her underground tomb beside the pyramid of Senwosret II at Lahun. Hieroglyphic signs make up the design, and the whole may be read: "The god of the rising sun grants life and dominion over all that the sun encircles for one million one hundred thousand years [i.e., eternity] to King Khakheperre [Senwosret II]."

(Since my first visit in 2005, they've changed this display to give a better view:

As seen in 2005, with my reflection...