If you’ve ever paused mid-scroll and wondered what is a composite diamond, you’re not alone. Composite diamonds have quietly carved a space in modern fine jewelry by offering something many buyers seek: the visual presence of a larger diamond without the cost that typically comes with it. At first glance, they can look remarkably impressive. But beneath the sparkle lies a structure that’s fundamentally different from a single-stone diamond. In this guide, we’ll unpack what is a composite diamond, how