China A-shares lab-grown diamond sector jumped at the open; Huifeng Diamond rose
over 13% and Huanghe Xuanfeng gained over 9%, with Guoji Jinggong, Sifangda,
Yingnuo Laser and Hengsheng Energy also higher. Media reported Huifeng Diamond's
Baotou CVD production line is expected to begin production in early July.