Heaven-sent.Heavenly Blue-- it's the color used to describe morning glory flowers, and this pair of perfect round-cut Zircons. Delicate, but not pale. Perfect for a pair of earrings or other Fine Jewelry. The Zircon is a gemstone which is only now becoming familiar to gem-fanciers. Not to be confused with its sound-alike, the cubic zirconia. Cubic zirconia is an inexpensive diamond substitute, while the Zircon is a rare, natural, precious gem. Gemstone Details