Petal-icious Pair. Zircon is a precious gem, not to be confused with cubic zirconium, which is an inexpensive diamond substitute. These perfectly matched round cuts are fantastic as the basis for a pair of earrings or cufflinks. The delicate rose-pink color is associated with romance by many metaphysical sources. The gentle pink shade is also believed to be helpful in developing self-esteem. Gemstone Details