I have a pair of silver tone drop earrings with cushion cut blue stones. The center stone is surrounded by small clear stones. I don’t see and maker’s marks or metal content markings so I don’t know what the metal actually is but they stick to a magnet. Since they stick to a magnet, they aren’t a precious metal so I assume the stones aren’t valuable either. They’re really pretty though and look expensive. See my other ads for jewelry, artwork, home decor and more.