Please refer to the photos for the measurements**** 1 Waterford marked vintage cut-crystal spear prism. Came from an old Waterford Chandelier. Great sparkle, puts out Rainbow shine! It is in great original condition. The sale is for 1 prism ONLY; This prism consists of three parts- the bottom icicle prism and the two top octagonal prisms. The bottom icicle prism alone measures about 3" long (see photos).