If it’s an upper case “L” along with a reduced circumstance “c”, it’s for Louis C Marks who made jewellery from the 40s. SETA is an organization that offers style jewellery. Their jewelry commonly has a CZ plating more than silver. Halo is actually a stone setting within the ring, https://devinyhowc.blog-kids.com/37270835/details-fiction-and-jp88