Manufacturing · 12 min read · Oct 2, 2026
Bezel Setting Finishing: Burnishing the Wall Clean
Rejected pendants had a bezel wall high on one side and sharp on the other. Here is the burnish and trim step that fixes it.
Read the guideTrade knowledge base
Jewelry & Gemstone Buying Guides for Wholesale Buyers
Practical, factory-level guides on sourcing lab grown diamonds, moissanite and gemstone jewelry: how grades really work, what certification means for customs and resale, how MOQ and tiered pricing behave, and how to compare landed cost between suppliers.
- 9 guides published
- Written by our trade desk
- Updated October 2026
Manufacturing · 12 min read · Sep 30, 2026
Ring Sizing Beads: Comfort Fit That Stops Spinning
Forty spinning-band returns in two months traced to knuckle-wide, base-narrow fingers. Sizing beads are the $1.50 fix.
Read the guide
Manufacturing · 12 min read · Sep 30, 2026
Rhodium Plating Process: Thickness, Prep, and Wear
Gray wear-through after six weeks traced to a 0.1 micron flash coat. Here are the 0.25-0.5 micron specs that last.
Read the guide
Manufacturing · 12 min read · Sep 29, 2026
Casting Investment Ratio: Powder to Water by Weight
An orange-peel surface after a powder brand swap traced back to a ratio that was too thin. Here are the 38-42 ml per 100 g numbers.
Read the guide
Manufacturing · 12 min read · Sep 28, 2026
Jewelry CAD Wax Patterns: Getting Casting Dimensions Right
A signet ring came back 0.4 mm thin because the wax print ignored shrinkage compensation. Here is the 1.010-1.020 scale factor that fixes it.
Read the guide
Manufacturing · 12 min read · Sep 27, 2026
Stone Setting: Seat and Girdle Fit That Holds
A cock-eyed moissanite ten days after setting traced back to a seat cut too large. Here is the 0.1 mm tolerance that keeps stones in.
Read the guide
Manufacturing · 12 min read · Sep 26, 2026
Silver Soldering Fire Scale: Prevention and Removal
A 30-day aged shank shows purple bloom if fire scale was not controlled. Here is the bench practice that keeps silver joints clean.
Read the guide
Manufacturing · 12 min read · Sep 25, 2026
Bench Polishing Final Stages: The Last 10% That Sells
A rejected silver band run taught the factory that 20 seconds of rouge is not enough. Here is the per-piece time budget for a mirror finish.
Read the guide
Manufacturing · 12 min read · Sep 24, 2026
Jewelry Casting Spruing: Runner Design That Saves Castings
A 1.2 mm sprue on a 4.2 g ring is why two castings came back with hot tears. Here is the runner math wholesale buyers can check on a wax tree photo.
Read the guide