Zircon
Zircon is a gemstone. It is a December birthstone.
Zircon is a naturally occuring gemstone in its own right. It is mined in countries all over the world. It comes in many colors.
Zircon should not be confused with cubic zirconia which is an artificial stone. Zircon itself is a mineral. It has a beautiful fire, like the diamond. The best known zircon has a striking blue color.
One problem with Zircon is that the color darkens with prolonged exposure to the sun. That problem can be resolved by treating it with heat to bring back its original beauty. Send it to a jeweller for that.

14K Yellow Gold Blue Zircon Leverback Earrings
14K Yellow Gold Blue Zircon Leverback Earrings Blue zircon, in a simple and classic leverback, are the centerpiece of these earrings. The leverback earrings contain two 7 X 5MM pear shaped genuine blue zircon gemstones (weighing approximately 1.8 carats in total). The blue zircon leverback earrings are crafted of 14K solid yellow gold. Blue zircon is the birthstone for December.

Zo-Dark - Stainless Steel and Zircon Pendant w / Lace
A contemporary and determined edge with the crossing black lace lends an original touch to this Zoppini pendant enriched by a zircon sparkle. Gift box included, Made in Italy