Kilkenny Silver - Celtic Bronze Cross Knot Brooch.A bronze Celtic cross knot brooch with green agate, red carnelian, and a centre stone of onyx. This brooch measures approx. 48mm in diameter. Did you know that many knotwork patterns were used for decoration? However, when you draw a Celtic knot , you start at one point and have to come back to that point to finish; so the Celtic knot generally symbolises eternity, in loyalty, friendship, faith or love. A green Celtic Kilkenny Silver gift box is