Firstly there's nothing wrong with buying gold filled or plated jewellery but it's important to understand what you're buying so you don't get ripped off. Many of us prefer the colour gold to silver, but not the price tag. Gold is incredibly expensive right now, approximately 6x more expensive than gold filled per gram, so jewellers are trying to find more ways of making their jewellery more affordable and accessible and plating opens up a bigger market. However, I see a lot
Not necessarily, but first lets be clear '925' alone (without a full set of markings) doesn't mean anything. It's not a legally recognised mark. In fact you can buy a 925 stamp online for just a few pounds. The only way to be sure of a metals purity is to get it assayed by one of the recognised independent assay offices. Hallmarking is a huge topic that I will leave for its own post but basically owning a piece of jewellery stamped 925 neither proves or disproves it's silver.