The Lord of the Rings movies introduce a jeweled pendant called the Evenstar which Arwen gives to Aragorn as a token of their love. A similar pendant appears in the short story The Jewel of Arwen by M Z Bradley although in that story Arwen gives it to "the Ring-Bearer" rather than to Aragorn. In Tolkien's novel, Aragorn and Arwen give a similar necklace to Frodo as a farewell gift before he leaves Minas Tirith.
The photos do not do these earrings Justice. They are in three layers with the crystal being the top of the layer so they're very dimensional. Don't forget to check out the necklace by the same name.