Following a similar move by Ms. Cao Thi Ngoc Dung's brother, PNJ CEO Phan Quoc Cong has registered to acquire 1 million shares as the market price sees a significant drop.

Sell-off pressure has caused PNJ to hit its lower limit for three straight sessions, reaching a one-year low, with over 12,5 million shares pending matching at the floor price.

PNJ's chairwoman affirmed that 28,000 diamonds from a smuggling ring, linked to subsidiary P-Lab, did not enter its retail system.