What crafting does
Once you've judged and opened a raw stone, you can craft the jade inside into jewelry instead of selling the raw stone directly. The store page describes shaping "your own playstyle run by run" by pairing tools and talents across appraisal, restoration, crafting, pricing or shop-management.
Confirmed details, from the achievement list
- There are 6 distinct jewelry styles — one achievement requires displaying all 6 at once in your shop's display case.
- One stone can yield multiple pieces. Achievements exist for getting 2, 3, and 4+ pieces across 3 different styles out of a single stone, all crack-free and above purchase price.
- Bangles have a "heart" — the hollow center of a round bangle can be filled with a second crack-free item (a safety buckle or beads).
- Cracked stones can be repaired with a repair-glue item and still crafted profitably.
- A hard-mode run exists: 3+ profitable pieces from one stone without a master craftsman, unlimited crafting budget, or repair glue ("Bare-Handed Craftsmanship" / 素手成器).
Unconfirmed
The names and specific stat differences of the 6 jewelry styles, exact crafting costs, and how "talents" modify crafting outcomes are not documented anywhere official yet.