METAL: 14k Gold. MEASUREMENTS: Necklace is 17 1/4" long and approx. 18mm wide. GEMSTONES: Multi color semi precious gemstone cabochons - including amethyst, quartz, tourmaline, topaz, citrine. MARKED: Willis 14k. WEIGHT: 115.3 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.