Internal cleanliness (if any).
Very slight inclusion, referred to as VS 1 or VS2.
Inperfect, I 1, I2, I3 for short.
Yours is a double V, that is to say, if you buy a diamond ring, you will buy a double V ~ ~ ~
In short, diamonds with VVS grade or above are rare. VS or SI is also invisible to the naked eye, but it is much cheaper and many people choose it. As for I 1-i3, the price is of course much lower. If it is bright enough, it can also give you a beautiful effect.
1 carat equals 100, and a 0.5-carat diamond can be written as 50 copies. 1 calorie equals 0.2g, which means 1 gram equals 5 calories.
DC7 may be the size of a ring. . Guess. . .