METAL: 18K white gold. GEMSTONES: diamonds - approx. 7.00-7.50ctw , mabe pearl - 16mm, black and red enamel. MEASUREMENTS: brooch measures 4" long x 50mm at widest point. MARKED: Italy 18Kt. WEIGHT: 101.3 grams.Gemstones have not been graded for color and clarity, and tested for clarity and color enhancement, unless stated otherwise.