Jeweled Pendant

The Jeweled Pendant most likely belonged to the king of Stormwind. It is crafted with great skill and precision and is a noble's pendant.

Source
This item drops from the following Makrura in Dustwallow Marsh:
 * Lord Angler
 * Muckshell Clacker
 * Muckshell Pincer
 * Muckshell Scrabbler
 * Muckshell Snapclaw

As a quest objective
It is an objective of Marg Speaks and then provided for Report to Zor.