The precision of the facets, which determines how well the diamond interacts with light. Natural vs. Lab-Grown Diamonds
The value of a diamond is largely determined by the GIA grading system's 4 Cs: The weight of the diamond. DIAMOND
Diamonds are created about 150-200 km beneath the Earth's surface, where extreme pressure and high temperatures force carbon atoms into a stable crystal lattice. The precision of the facets, which determines how
Volcanic eruptions transport these diamonds to the surface through kimberlite and lamproite pipes. The precision of the facets
Most natural diamonds are between 1 and 3 billion years old.