After Andrea asked that question, she stared intently at Edward, making him feel rather guilty.
Edward did know a little about making sapphires.
In the world of his previous life, the technology for manufacturing sapphires had already become quite advanced.
It had even made its way into ordinary households. From the screens of the phones in their hands to the LED lamps above their heads, all were made from sapphire—the substance scientifically known as corundum.
Its chemical composition was simple, too: aluminum oxide.
His method of making gemstones was also the simplest method of processing them in his previous life: heating and melting small fragments or low-quality gemstones to improve their quality.
But it seemed the magic power of this world was playing a joke on him. Gemstones treated that way couldn't store magic power.
He also knew two methods of producing sapphires, which he'd looked up online out of curiosity before crossing over.
But since he wasn't a researcher, he only knew the principles. He had no idea about the specific parameters. He could only experiment and figure them out little by little in the future.
Alchemy and magic in this world could easily help him do things ordinary people would find difficult, but some things still required painstaking research to advance his Technology Tree.
He came back to himself and put on an innocent expression.
"I really don't know. If it were possible, have you seen the blue glass on your sword?
"Those bits on the hilt are spaces left for inlaid gemstones. If I had any, I'd have replaced them with real ones already."
At first, Andrea still looked unconvinced, but when she heard that gemstones could be inlaid in her sword, she immediately perked up.
"Why didn't you say so earlier? You don't have any, but