Diamond 4Cs
When purchasing a diamond, you will hear mention of the "Four Cs." These criteria for evaluating stones—carat weight, cut, color, and clarity—offer a useful starting point. However, diamonds that seem similar when judged by these criteria alone can vary greatly in beauty.
A: polished 0.65mm to 9.36mm
A: belong toVVS VS1 VS2 SI SI2 grade ,D E F G H I color.