The spectral colors that flash from a diamond as light exits. That is fire, produced by differences in refractive index across wavelengths that send each color out at a slightly different angle.
Made With Purpose
Before committing to a charm system, the attachment mechanism is worth understanding. Jump rings allow easy repositioning but are the least secure, lobster clasps add security with a deliberate close, toggle loops offer a middle ground, and threaded cores hold firmly but limit rearrangeability.