10k White Gold December Birthstone Blue Topaz Journey Pendant, 18" Journey necklace featuring S-shaped pendant set with round gemstones of graduated size Box chain with spring-ring clasp Blue Topaz is December's Birthstone The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture. Gemstones may have been treated to improve their appearance or durability and may require special care. Imported