Thomas Sabo Charm Club Sterling Silver Black Obsidian Charm 0868-023-11. The Thomas Sabo Charm collection boasts a huge range of themed charms and bracelets for a fun and playful way of building a jewellery collection. Whether you're looking for a birthday or Christmas gift, a special present for a loved one or a treat for yourself, the Thomas Sabo Charm Club collection is the perfect place to start. Add a touch of elegance to a charm bracelet with this Thomas Sabo Black Obsidian Charm. The piece boasts a stunning bevelled black obsidian ball that is completed by a delicate sterling silver bow. The charm is then completed by a sterling silver bail and lobster clasp so it hangs beautifully from a bracelet. You can also find matching Thomas Sabo charms and Thomas Sabo charm bracelets on our website. Sterling Silver and Black Facetted Obsidian.