The owner of Da Liang Jewelry Store had no idea it was topaz; he took it as a yellow crystal.
The ones who sold him this batch of crystals were a team of gem hunters.
Those gem hunters roamed the city ruins destroyed by demon spirits or between gemstone mines year-round.
Especially beneath the city ruins, no one knows how many gemstones are buried there.
Sha Chu found someone from the team of gem hunters, and according to him, those yellow crystals were found beneath a city ruin.
They dug up a villa buried underground, relatively intact, and found many crystal ornaments there, even a crystal chandelier adorned with natural crystals.
Originally, they hoped to find some jewelry, but ended up only retrieving some amethyst and yellow crystals.
That Emperor Topaz was mixed in with them, and they didn't notice it; after returning, they sold it to the owner of Da Liang Gem Store as yellow crystal.
