METAL: 18k Gold. MEASUREMENTS: Ring size - 6, ring top is 13mm x 12mm. GEMSTONES: 1.06ct oval natural alexandrite, surrounded with approx. 0.65ctw in diamonds. MARKED: 080, 185, .65. WEIGHT: 6.1 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.