"China 925" og et symbol er på innsiden av en gullring (Jeg kan ikke skjønne) . Er det ekte gull? 
The symbol for Sterling Silver is 925 som står for 92 1/2% sølv. I have seen many of these and most of the time it is silver. Don’t be fooled by gold plating on silver, a common product called Vermil. Bruk en magnet, if it picks up with a magnet, it is fake. If it doesn’t it’s probably silver and should be priced as silver. The gold plating has little to no value.
I found a silver ring on the floor, on the back of it it says 925 CN FZN . It has a square piece on the front with shiny small diamonds in it . How much is it worth?
Kanskje ? Nothing for resale, unless somebody likes it.
Diamonds are RARELY set in silver, unless they are very low grade. Especially mass produced rings from China. It’s a silver (925), ring made. I Kina ( CN), and the FZN is most likely the manufacturer. If you like it, wear it, or give it to someone else that would, but it isn’t worth the effort to sell it. Beklager!
Who makes jewelry with Israel 925 stamped on the inside?
925” is the world-wide quality stamp for all sterling silver objects. It means that on a count of 1000 etter vekt), 925 parts are silver (one of the basic elements on the chart of elements), mens de gjenværende 75 parts can be anything at all! Tradisjonelt (although not necessarily), sterling silver has 7.5% kopper (another basic element on the chart of elements). Slik, sterling silver is any silver alloy (an ‘alloy’ being a mixed metal) som er 92.5% sølv.
I Storbritannia, enkeltpersoner (metalsmiths) cannot stamp their items with quality marks—they must be assayed and stamped by the authorities. But throughout most of the world, like in the US and in Israel, anyone can stamp their own merchandise. So if you find jewelry in Israel which is stamped 925, it is supposed to be silver, men kanskje ikke hvis det var uærlig stemplet. Smykker kjøpt i anerkjente smykkebutikker er svært sannsynlig å være sølv hvis stemplet 925. Butikken ville få store problemer hvis det ble oppdaget at de solgte ikke-sølvsmykker som sølv. Smykker kjøpt på markeder eller basarer er kanskje ikke sølv selv om de er stemplet. Alt dette gjelder også for gull. Jeg har sett «gull»-gjenstander kjøpt av Philippina omsorgspersoner i Gamlebyen (Jerusalem) stemplet 18K som for meg ikke ser ut til å være gull i det hele tatt…..