I was looking for smallish diamond studs to wear every day in my upper holes, so I could wear other bigger earrings below.  These are perfect for that. They are extremely comfortable, sparkle beautifully, and have not caused any irritation: I put them in a week ago, and just left them in. No problems. I certainly would recommend these.  They are big enough to show they are diamonds, and not so big as to look like zirconias.