15.5" + 1.5" extension blue topaz bead necklace with a labradorite, green amethyst and baroque pearl charm drop. The labradorite is approximately 6mm x 7mm, the green amethyst is approximately 7mm x 11mm, and the cultured freshwater baroque pearl is approximately 11mm x 16mm. This necklace has a sterling silver lobster clasp closure. Made with .925 Sterling Silver.