Strontium titanate is a diamond simulant with a dispersion rate significantly higher than diamond itself - meaning it produces more fire (the rainbow flashes of light) than diamond does, creating a sparkle quality that is genuinely spectacular in warm gold settings. At 4.40 total carats of round strontium titanate in a three-stone 18K yellow gold over sterling silver ring, the fire and brilliance of the stones work with the gold setting to produce a ring with extraordinary visual impact. The three-stone format positions one larger center stone between two smaller side stones, a classic arrangement where each stone's light return amplifies the others. A ring that photographs remarkably well and wears with genuine fine jewelry presence.