I am highly allergic to any metal except gold.  So far, I've been able to wear them with no problems.  They are so comfortable, I sometimes forget they're there.  It's important that they're solid gold so I don't have to worry about the gold plating coming off.  The posts are short, but they fit me perfectly.  I know the posts are short and the backings are tiny because gold is expensive.  It could not be offered at this prize if the studs were longer and the backings larger.  The size of the stone is perfect; it looks like a real diamond.  I am thrilled to get to wear diamond earrings at this price!