Jade is an umbrella term that encompasses a wide variety of gems, but the only pure forms of jade are jadeite and nephrite. Jadeite is the rarer of the two varieties of jade, and as a result it is more precious. The most valuable variety of jade is a striking, emerald-green jadeite known as "imperial jade".
Jade gemstones can range in color, including green, white, orange, yellow, lavender, grey and black. In many cases, jade gemstones occur with more than one color in a single gem. Jade gems with color that is evenly distributed is highly valued. However, color preferences vary depending on the region. For example, in the West, deep and vivid green jade is preferred, but in the Far East, pure white or yellow jade with a pink tone is prized, along with green 'imperial jade', which is found only in Burma.
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Many beautiful gems on the site. Love that you are actually shipped the gem that is shown in the photos. Also cool that they give a write up of each gem detailing hardness, characteristics, and best uses for mounting. Great site! Looking forward to seeing these gems in person.