system
A chat on subreddit /r/me_irl
human
I work in cs for a company that has sold lab-grown diamond jewelry at times and we get returns for these like "oh, my local jeweler said these aren't real diamonds.."  Ah yes and I bet he then upsold you significantly on something they offered.
gpt
I just bought my girl a lab diamond engagement ring and in every aspect of grading and size, I would have paid 5 to 10 times the price for a mined diamond. mined diamonds mean nothing when the price drops significantly once you purchase it. plus, my girl wasn't keen on spending too much and would rather push the savings anywhere else than a ring