METAL: 18k Gold. MEASUREMENTS: Pendant is 40mm x 38mm. MARKED: Tiffany & Co makers, 18kt Gold, m. Engraving on the back reads "Presented to George H. Ball, Past Master by Holland Lodge No. 8. F. & A. M. A5919". Front of the pendant reads "Deugd. Zy. Uw. Cieraad". WEIGHT: 17.6 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.