This piece is a screen-accurate replica of the pendant that Morpheus wears in every scene that takes place outside the Matrix.
The necklace is braided deer-hide lace, finished with a turks head knot, & I created the "stone" using Super Sculpey.
Photos #1 & 2 are of my replica, photos #3 & 4 show the piece as seen on-screen in The Matrix, & photo #5 shows the necklace/pendant on-screen in The Matrix Reloaded.