“China 925” dan simbolnya ada di bagian dalam cincin emas (Aku tidak bisa memahaminya) . Apakah itu emas asli? 
The symbol for Sterling Silver is 925 yang merupakan singkatan dari 92 1/2% perak. 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. Gunakan 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?
Mungkin ? 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. Di Tiongkok ( CN), and the FZN is most likely the manufacturer. If you like it, memakainya, or give it to someone else that would, but it isn’t worth the effort to sell it. Maaf!
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 dengan berat), 925 parts are silver (one of the basic elements on the chart of elements), sementara sisanya 75 parts can be anything at all! Secara tradisional (although not necessarily), sterling silver has 7.5% tembaga (another basic element on the chart of elements). Dengan demikian, sterling silver is any silver alloy (an ‘alloy’ being a mixed metal) yang 92.5% perak.
Di Inggris, individu (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, tapi mungkin tidak akan terjadi jika capnya tidak jujur. Perhiasan yang dibeli di toko perhiasan ternama kemungkinan besar terbuat dari perak jika dicap 925. Toko tersebut akan mendapat banyak masalah jika diketahui bahwa mereka menjual perhiasan non-perak sebagai perak. Perhiasan yang dibeli di pasar atau bazar mungkin bukan perhiasan perak meskipun dicap demikian. Semua ini juga berlaku untuk emas. Saya telah melihat barang-barang ‘emas’ yang dibeli oleh pengasuh Filipina di Kota Tua (Yerusalem) dicap 18K yang menurut saya sama sekali bukan emas…..