S925 Engagement Ring Quality Factors: Metal Stamp, Plating, and Prong Security
S925 Engagement Ring Quality Factors: Metal Stamp, Plating, and Prong Security Introduction When you order a sterling silver engagement ring from a manufacturer, the invoice says "S925." But what actually arrives in the DHL box can vary wildly depending on who cast it, how they plated it, and whether the prongs were set by hand or by machine. S925 engagement ring quality factors — metal stamp, plating, and prong security — are the three things that separate a ring that lasts decades from one that turns fingers green and drops stones within a year. This article walks through each factor step by step, with the specific numbers and standards you should check before approving a production run. If you are sourcing for a jewelry brand, an e-commerce store, or a custom bridal line, these are the acceptance criteria you need on your spec sheet. Key Takeaways Verify the S925 stamp is deep enough to survive polishing without disappearing. Rhodium plating thickness of 0.5–1.0 mic...