METAL: high karat gold. MEASUREMENTS: Necklace is 16 1/4" long, center drop is 52mm long. GEMSTONES: rubies and rose cut diamonds, decorated with enamel. TESTED: high karat gold, 22k or 24k. WEIGHT: 67.2 grams. Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.