A perfect choice for yourself, or as a gift, our London Topaz stud earrings feature sturdy cast basket settings and beautiful sparkling gems. Durable and affordable, a pair of blue topaz earrings are an excellent gift for a woman with blue eyes, or anyone who enjoys the beautiful color of blue topaz. White topaz is a popular substitute for the birthstone of April, which is diamond. A pair of white topaz earrings is an affordable alternative to expensive diamond studs.