This more-than-unique pendant is quite a piece of art. With a textured surface on both sides, it is a wonderfully abstract grid of connected, irregular squares/rectangles layered at various heights. Adding to its unusual beauty are the 3 amethyst cabochons, bezel set in protruding cylinders. The attractive patina is another plus. The pendant is made of 835 silver (stamped in 2 places). I am unable to find any other discernible marks. It measures 1 1/2” x 1 1/4" x about 1/2” (including amethysts). The necklace is 24 1/4” long. I can find no marks on it; but, it tests high-grade silver with acid (likely 835, as well). This very interesting piece is in excellent condition.