Blue Zircon, thought by many to be relatively new to the gem market, has been with us for many centuries. In the middle ages zircon was worn to promote riches, honor and wisdom. It was also believed to drive away plagues and evil spirits. The name is believed to originate from the Persian word “Zargun:” , which means “ “gold colored”, due to the yellow color of the stones found there. Blue Zircon gained popularity in the 1880’s and was used extensively in Victorian jewelry. Primary sources for zircon include Sri Lanka, Kampuchea, Burma, Thailand, and Australia. Zircon is the birthstone for the month of December and is designated for the 7th wedding anniversary. Almost all blue and colorless zircons have been enhanced by heat treatment.
HARDNESS: 6-6.5
R.I.: 1.810-1.984
TOUGHNESS: Poor
S.G.: 3.93-4.73
