Are emeralds fashioned like diamonds?
No, each gemstone, because of the unique way in which it transmits light when passing through it, must be fashioned to take the best advantage of these phenomena. How light behaves through the stone depends on the refractive index of the material and its hardness. Emeralds are normally fashioned and best exhibit their color, when fashioned in the rectangular or square “emerald cut”. When stones are fashioned in their ideal proportion, the light the stone returns to the eye is maximized by the proper cut of the pavilion facet and ideal polish.
