Trang Pham (Jen), GIA GG/June 15, 2022
Scientists estimate that the earth is about 4.6 billion years old. According to GIA, research published in 2010 indicates that the youngest known diamonds—found in a Brazilian kimberlite—are just 107 million years old. On the other hand, the oldest known diamonds—from Canada’s Ekati mine—are as much as 3.5 billion years old.