A perfect choice for yourself, or as a gift, our Blue Topaz stud earrings feature sturdy cast basket settings and beautiful sparkling gems. Blue Topaz is known as the gem that has the power to improve one’s communication skills. A blue topaz pendant may make you a more eloquent and confident speaker. Topaz is known as the gem that has the power to improve one’s communication skills. A white topaz pendant may make you a more eloquent and confident speaker.