Greenland is honoured to be part of the latest edition of GIA Education Gems and Gemology. See link below, page 115, where Product Manager Martin Viala (MSc, FGA) speaks about the very unusual find.

“A transparent bright orange sapphire weighing 0.89ct and measuring 6.41 × 5.02 mm (figure 2) immediately caught our eye”. Says Martin Viala, product manager for Greenland Ruby, who also shares video of the original 1.07 g sapphire rough. This unusual gem was mined in late 2019 and heated in May 2022. Viala noted that it was a textbook example of a chromium trapped-hole (h●–Cr3+) chromophore."