Necklace is made of sterling silver 925 and Turquoise Measurements: Stones: approx. 2 mm / 0.08" and 4.5mm/0.18" length 38-51 cm/15 -20 inches + 5cm / 1.9" adjustment The necklace worn by the model is 44cm / 17.3 " long Silver element : 1-3 cm (0.4" - 1.1"), The width of main element: 20 cm/7.8" Thank you for visiting!