JOTW Goldtone Pave Blue & Simulated Ruby Pendant Set Separate 24" & 30" Box Chain Necklaces (C-1244 + P-826 + P-827) Box chain measures 2mm 24 Inch and Brass Rope chain measures 4mm 30 Inch. Blue and Red Stones measure .65 inches from left to right and 1.15 inches from top to bottom. Great Quality Jewelry!