ý bạn là gì 925 nhẫn mạ bạc?
“925” là bạc sterling, một hợp kim đó là 92.5% bạc. Nếu bạn thấy 925 đóng dấu trên một mặt hàng, nó có nghĩa là nó là bạc nguyên chất. Không có gì khác. Ở Mỹ, tôi tin rằng việc sử dụng 925 tem cho bất cứ thứ gì không phải là đồng bảng Anh vững chắc (silversmiths feel free to correct me if that is wrong) If you go to a reputable jeweler, that’s the only thing that will be stamped 925. Silver plated rings will not be stamped 925.
Tuy nhiên, the jewelry market has recently been flooded with items that aren’t solid sterling, but have the 925 mark anyway. Manufacturers in China are apparently putting the stamp on just about anything that looks like silver, as a marketing device. The item could be plated with sterling. It could be plated with something that is silver in color, but not actually made of silver at all. You have no way to know. If you ask the vendors of such items if they are solid sterling, you may get an evasive answer like “it is marked 925 sterling.” Well, vâng, it’s marked. But in some parts of the world that has no meaning; it’s just an advertising scam.
I have numerous “925 silver plated” items from China that do not have a gram of real silver in them, bất cứ nơi nào. Most are copper, coated in a shiny silver alloy. I also have a few steel and copper chains plated in genuine silver. Real silver plate only has a microscopically thin layer of real silver, so if an item looks it was dipped in thick silver paint, that ain’t the real thing.
So if what you are looking at is called “925 sterling”, and it is from a part of the world where the 925 mark is being misused, it might have some sterling silver on it or not. You have no way to know.
925 Silver tarnishes, and imitation silver alloys don’t, so in time you’ll figure it out.
Như một ví dụ, here is the online listing for an item I ordered from China. I tested it when it arrived and found the core was copper, and the plating was some non-silver alloy. Below are the specs.
Shiny Findings 925 Sterling Silver Fashion Jewelry DIY Making Accessory 2 PCS/1Pair Earring Hoop
Earring hook
Convertion: 1 mm=0.039 inch, 1 inch=25.4 mm
Vật liệu:925 Bạc Sterling
Quantities: 2 PCS/1 Pair
Đường kính: 0.9cm
Chiều rộng: 0.15cm
Chiều cao: 1.1cm