Zircon is a colorful gem with high refraction and fire that’s unfairly confused with cubic zirconia. Well known for its flashes of multicolored light.

2019年5月15日 · Standard gemological testing confirmed that the stone’s properties were consistent with zircon: an over-the-limit RI, an SG of 4.72, weak yellow fluorescence in short-wave UV and no fluorescence in long-wave UV, and a typical uranium-related pattern in the spectroscope with a prominent sharp peak at 653 nm.

While zircon is not as hard or tough as a stone like sapphire, it can still be worn in all types of jewelry as long as proper care is given to avoid rough wearing or hard blows. Also, zircon can be brittle, so it should be worn and stored in a manner that …

Discover the meaning and history of zircon, a December birthstone, and where it can be found.

Zircon is a colorful gem with high refraction and fire that’s unfairly confused with cubic zirconia. Well known for its flashes of multicolored light. Gem Encyclopedia

Today, most zircon that is faceted for use in jewelry is free of inclusions that are visible to the eye. Eye-visible inclusions cause a drop in zircon value. Rarely, zircon might contain long parallel inclusions that create the cat’s-eye effect when the stone is cut as a cabochon.

You can find many colors of zircon—blue, green, brown, yellow, orange, and red. The colorless zircon is one of the most brilliant non-diamond gems!

Zircon occurs in an array of colors. Its wide and varied palette of yellow, green, red, reddish brown, and blue hues makes it a favorite among collectors as well as informed consumers. Zircon crystals grow in many different types of rock and possess a …

GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research.

marine, green orthoclase, topaz, zircon, quartz, and pearls are briefly discussed. Commercially significant deposits of ruby, blue and fancy sapphire, and spinel are located in two northern provinces: Yen Bai (Luc Yen and Yen Binh Districts) and Nghe An (Quy Chau and Quy Hop Districts). Large volumes of blue,