One aspect of Liangzhu jade is that its craftsmanship and historical value are both quite high. Another aspect is that the number of artifacts is relatively great, so there are many jade thieves digging them up. For this reason there is a chance to make a return on one's investment in the marketplace, so a great scramble is underway for these items.
而良渚玉，一方面因為其工藝及歷史價值甚高，一方面也因出土數量較多，盜玉者不少，在市場有投資效益，因此爭逐者眾。