Blink your eyes as you pass, and you'll miss it. Supplies from this lucrative, heavily-guarded mine are expected to continue for more than a quarter of this century, and perhaps as long as 40 years, at its current production level. Rings made of nephrite jade. Jade West Corp. Chrysoprase is a desirable gem in its own right and is gaining popularity among U.S. jewelry makers, but it can't touch the value of fine jadeite. Although there are differences, the three can also look enough alike to fool an unsuspecting buyer.
Color is key.
Of jadeite , Richard T. Liddicoat Jr. writes that in its finest green color it bears a close resemblance to emerald. The green of authentic chrysoprase , caused by traces of nickel, varies in shade from pale or yellowish green to Granny Smith apple green, its best color. At its best, it will be without flaws, inclusions, or other imperfections, but color is of most importance. Though lacking the toughness of jadeite, chrysoprase is often harder, more translucent, and produces better polish and luster. In appearance it has an oily luster, although the stone itself is not oily.