Are Lab-Grown Diamonds Real Diamonds? Walking into a jewelry store last month, I overheard a couple having an intense discussion about engagement rings. “But are lab-grown diamonds real diamonds?” the woman asked, holding up two seemingly identical stones. The jeweler’s answer surprised me, and it might surprise you, too. Lab-grown diamonds have sparked one of the biggest debates in the jewelry world. Some people swear by them, while others remain skeptical. After researching this topic extensively and speaking with gemologists, …