Impressionable and timeless, these beautiful 4.21 carat Oval Blue Zircon earrings are a set to keep. Our ™Glacier Ice Blue Zircon is of the highest quality available. A precious gemstone, not to be confused with Cubic Zirconium-Zircon is a natural stone mined predominantly in Southeast Asia. With the highest refractive index of any colored gemstone, only the diamond can compare in brilliance. Goldsmith Gallery is the largest importer of this stone in the United States. Our combination of variety, quality and value cannot be matched. We are THE ONLY source for ™Glacier Ice. Stones in a four-prong setting. Superior in quality, this set is one to not pass up.