1, gem fragment: (Mediterranean) Venice Jewelry Store

2. Small gems: (Beihai) purchased directly from London jewelry store (or synthesized in Venice jewelry store).

3. China gemstone (Beihai) was synthesized in a jewelry store in London (it takes three small gemstones to synthesize one).

4. Big gems: (Indian Ocean) (Hermes) Jewelry store needs three China gems for synthesis.

5. Perfect gems: (East Asia) needs three gems to be synthesized in Quanzhou jewelry store.

That's basically it. In fact, you need to find someone to exchange with yourself. It's faster this way. . .