Lab-Grown Alexandrite & Diamond Pendant Necklace 16" (0.02 ctw)

The plain pendant done right: one round lab-grown alexandrite held in a smooth bezel, with a single small diamond above it so the eye reads white-then-color and the stone sits clean against the metal. Alexandrite is the trick stone that changes hue with the light, blue-green in daylight and shifting toward purple-red under a warm lamp, so this reads like two necklaces depending on where you wear it. At 16 inches it sits right at the base of the throat, close enough that the shift catches when you move between a window and a room. Yellow gold warms the green side, white gold sharpens the color, rose splits the difference, and platinum is there for anyone who would rather never re-plate. It ships gift-boxed and ready to hand over.