Material: Genuine Sterling Silver (925 silver, 92.5% silver content) Stone(s): Genuine Baltic butterscotch amber (19 x 13 mm) Overall Dimension (including bail): 1.25 x 0.6 x 0.5 inches Inner Bail Diameter: 6 mm Weight: 5.1 grams Stamp/Mark: 925 Origin: Poland Serial Number: p25589 Amber, an organic gemstone, is the fossilized sap of prehistoric trees which grew up to 50 million years ago. The stone has been used for jewelry since the time of Christ. The world's finest amber comes from the regio Prehistoric Trees, Amber Pendant, Silver 925, The Stone, 925 Silver, Amber, 925 Sterling Silver, Stud Earrings, Gemstones