The Hagal Crown Jewels were the most valuable crown jewels that existed on the planet Hagal in the II Theta Shaowei star system, and the best gemstones in the Known Universe. But during the time of Shaddam Corrino I, the jewel mines of Hagal had been completely mined out.
The Crown Jewels of the Hagal Mines Edit
- Fire Opal, one of the rare opaline jewels of the planet; The Baron Vladimir Harkonnen had an outfit lined with those Fire Opals.
- Hagal Quartz, large pieces of blue-green translucency gemstones shot through with streaks of pale golden-yellow fire; The 81st Padishah Emperor Shaddam Corrino IV's throne was made of the Hagal quartz.