Evenstar Necklace

From the popular movie, the Evenstar is a silver necklace with a white stone given to Aragorn by Arwen. It represents commitment and never-ending love to Aragorn and her decision to stay in Middle-Earth instead of going with her people to the Undying Lands. 

Even star is an old term for "evening star" in astronomy denoting the planet Venus (or sometimes Mercury). 

This necklace is a novelty necklace made from metal and synthetic stones.