u/Additional_Pin1349

I purchased earrings that were listed as 14K gold with lab gemstones. I reviewed the listing carefully and there was no indication that I was purchasing anything less than 14K gold and lab gemstones. and the price was appropriate for real gold. When the earrings arrived, it was clear that they were gold-plated. The plating had bubbles and was unevenly applied in some spots. I took them to a jeweler and he confirmed that they were plated with a gold-toned material and the stones were glass. The seller is refusing to refund because she says that by getting the earrings tested, I altered the earrings and therefore I am not eligible for a refund. Is that true? Does Etsy have a rule that if a buyer gets jewelry tested, they can't get a refund even if the jewelry turned out to be fake?