Louis Gem Trading, Gifts & Saturday Market Guide
Bring your gem surplus to Louis's Saturday stall only after checking which materials your next mine or upgrade needs.

Direct answer
Louis is a Saturday Market trader with a Fall 20 birthday. His page is about perfect gems, Gold Ingot, and the trade choices that sit between mining, crafting, and friendship. Check the market on Saturday, reserve upgrade materials first, and use a known gem gift when the remaining stock is genuinely spare.
Quick facts
- Role
- Saturday Market vendor
- Birthday
- Fall 20
- Main location
- Saturday Market
- Relationship status
- Ordinary resident
- Gift focus
- market goods, gems, and craft materials
- Guide date
- 2026-08-11
Read Louis's Saturday trade window
Louis is worth checking when your mine run has produced a surplus rather than when a build is waiting on one final bar. The Saturday Market gives the trade decision a fixed weekly checkpoint.
Compare the live stall with your chest before buying or gifting. A perfect gem can be a relationship item, a museum donation, or the missing ingredient for a crafting upgrade, and those uses do not share a single priority.
Separate perfect gems from upgrade stock
Perfect Ruby, Perfect Emerald, and Perfect Sapphire are not interchangeable just because they are all gems. Write down the color and quality needed for your next mine, request, or recipe before choosing Louis's route.
Gold Ingot belongs in the same ledger. Smelting another bar may take longer than waiting for the next market, so protect a minimum stack and trade only from the surplus above that floor.
Choose a gem gift with a purpose
Louis's Loved examples make a better guide than a vague list of shiny objects. The table names four concrete options and the decision each one should survive before it leaves your storage.
When a perfect stone is scarce, a normal conversation is safer than a bad trade. Return on the following Saturday with a replacement plan instead of turning a mine bottleneck into a friendship shortcut.
| Item | Why it fits | Before you trade or gift |
|---|---|---|
| Perfect Ruby | perfect gems, Gold Ingot, and trade-ready materials | Check this week's stock |
| Perfect Emerald | perfect gems, Gold Ingot, and trade-ready materials | Keep a spare for another use |
| Perfect Sapphire | perfect gems, Gold Ingot, and trade-ready materials | Keep a spare for another use |
| Gold Ingot | perfect gems, Gold Ingot, and trade-ready materials | Keep a spare for another use |
Protect Fall 20 from mining chores
Fall 20 lands during a season when mines, crops, and town events compete for the same day. Reserve the gift before the date and visit the market before spending stamina on a late mining run.
Birthday progress is only one touchpoint. Continue with the market rhythm, letters, and ordinary conversations so the relationship route does not depend on a single perfect gem each year.
Link Louis to Mines and the Calendar
Mines helps you plan the next ore run, Gifts explains the full preference set, and Calendar protects Fall 20. Characters keeps the market traders together without pretending their trade niches are identical.
A useful loop is mine, sort, reserve, then market. If the sorted chest has no safe surplus, use the visit to check prices and information rather than gifting the material your workshop needs.
REFERENCE NOTES
Sources and notes
Dates, platforms, and version details can be checked in the official references; character, gift, item, and route notes are organized here.
View sources
- Supplementary referenceLouis — Fields of Mistria Wiki Reference for the current platform, version, localization, and feature status.
- Supplementary referenceLouis Gift Preferences — Fields of Mistria Wiki Reference for the current platform, version, localization, and feature status.
- Supplementary referenceMarriage — Fields of Mistria Wiki Reference for the current platform, version, localization, and feature status.
- Supplementary referenceCharacters — Fields of Mistria Wiki Reference for the current platform, version, localization, and feature status.