METAL: 14k Gold. MEASUREMENTS: Ring size - 9 1/4, ring top - 20mm wide. GEMSTONES: Star sapphire cabochon - approx. 16.5ct by formula, measures 15mm x 13mm x 7.9mm. 2 baguette side diamonds. MARKED: BS., 14k. WEIGHT: 18.6 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.