including the prized variety known as “imperial jade” because, in China, only the emperor could own that specific shade of green. Jadeite, or fei cui, is found in a rainbow of hues ...

is green jade, surmounted with a double dragon and a cord." He further explained that the seals symbolize imperial authority and that the double dragon motif is common on imperial or court seals.

While jade is commonly seen as green, it also comes in lavender ... The most expensive hues are Imperial Greens, Purples, and ...