Sterling Silver
Also: 925 silver, 925 sterling, 0.925 silver
Sterling silver is a silver alloy containing 92.5% fine silver (925/1000) — the standard for cutlery, jewellery and many collector pieces.
Sterling silver is the most widely used silver alloy in the world for everyday items and jewellery. It consists of 92.5% fine silver and 7.5% other metals — usually copper. From this comes the familiar stamp 925, which states the fineness in thousandths.
Why not pure silver?
Fine silver (999) is very soft and offers hardly any structural stability for cutlery, rings or jugs. Adding copper makes sterling silver harder and more durable without losing its noble lustre. The trade-off: copper encourages tarnishing — the dark layer of silver sulphide that forms in air and can be polished away.
The silver value of sterling silver
Only the fine-silver content counts towards the material value. A 200-gram piece of sterling-silver cutlery therefore holds 200 g × 0.925 = 185 g of fine silver. You value this portion at the current silver price. For mixed lots — say cutlery combining 800 and 925 pieces — the melt value calculator does the conversion for you; for individual silver holdings the silver calculator is the tool to reach for.
Common silver finenesses
| Stamp | Fine silver | Typical use |
|---|---|---|
| 999 | 99.9% | Investment bars, coins |
| 925 | 92.5% | Sterling silver: jewellery, cutlery |
| 835 | 83.5% | older cutlery (chiefly Europe) |
| 800 | 80.0% | Cutlery, everyday silverware |
Beware: silver-plated is not silver
Many everyday objects are only silver-plated — they carry a wafer-thin layer of silver over a base metal and stamps like "90" or "100" (grams of silver plating per 24 pieces). Their precious-metal value is minimal. Sterling silver, by contrast, is solid throughout and carries the 925 fineness stamp.
Quick recap
Sterling silver (925) is the hardness compromise that makes silver fit for everyday use. For valuation only the fine-silver share of 92.5% matters — multiply it by the weight and the current silver price to arrive at the material value.