Sterling Silver Mother-of-Pearl Dragonfly Pendant/PinMaterial: Genuine Sterling Silver (925 silver, 92. 5% silver content) Stone(s): 4 pieces genuine mother of pearl (largest piece is 32 x 9 mm) Overall Dimension (including bail): 2. 8 x 2 x 0. 15 inches Inner Bail Diameter: 7 mm Weight: 14. 5 grams Stamp Mark: 925 Serial Number: p21976 Beautiful mother of pearl has long been used in jewelry and for other decorative purposes. Also known as nacre, mother of pearl is the lustrous layer found on the inside