3.5-Inch Baltic Amber with Sterling Silver PinMaterial: Genuine Sterling Silver (925 silver, 92. 5% silver content) Stone(s): Genuine Baltic amber Overall Dimension (including bail): 3. 5 x 2. 9 x 0. 4 inches Weight: 30. 1 grams Stamp Mark: 925 Origin: Poland Serial Number: p27109 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 region