The sparkle is very beautiful, like zirconia, and there is almost no damage to the silver hardware. I bought these a long time ago for handmade crafts, but I couldn't use them and have been storing them in a case. They are quite large, and I think the Swarovski crystals are an old model, so they may be different from current models. They are old, so I don't remember where I bought them, but they are very beautiful. Please use them for handmade accessories, etc.