I just got a beautiful 1.5 ct set of diamond studs in yellow gold. And, as probably everyone does, I spent all yesterday examining every nook and cranny of these earrings (even with my magnifying glass). I noticed where the studs are bent to hold the diamond, the gold is slightly melted. I would post a picture but you could never see this on a picture - it's small. Is this normal or sloppy work?