Strontium titanate is the diamond simulant with higher dispersion than diamond itself - producing more rainbow-color fire flashes than any other white stone at equivalent size. At 5.00 total carats of round strontium titanate in rhodium over sterling silver, these studs at approximately 0.55 inches each create an earring with extraordinary sparkle quality: the fire effect is visually distinct from cubic zirconia or moissanite, producing a richer, more colorful light return that reads as genuinely spectacular in varying light conditions. For the customer who appreciates the science of gemstone optics and wants the most visually dramatic white stone available in an accessible everyday stud format.