I've had these for about a month, they're fine earrings for the price. The metal mounting is very thin and the smooth silicone backings are awkward to handle. Since they're pretty cheap, I'm okay with that.

Based on the rave reviews here, I was expecting earrings that looked like real diamonds, but to me these don't look like real diamonds at all. Holding these next to my real diamond studs and diamond rings - there's a huge difference. For reference the stones I am comparing these simulants to are round diamonds, varying in size from small (.33ct) to large (over 2ct). These simulants don't have the depth that real diamonds have. They do sparkle, but in a flat, bright white sort of way. They're not ugly, but they clearly look like CZ to me.  So if you are looking for a pair of earrings that can pass for real diamonds, I would suggest you keep looking. There might be better alternatives out there if you're willing to spend more money and do some research. Other than that, they're fine sparkly stud earrings.

Also, to confirm what others have said, these are NOT screw back earrings. The squishy plastic backing just pushes onto the post.