At present, cream diamonds and brown diamonds are blind spots in diamond identification, which do not affect the classification of color clarity.

But professionals can identify it with the naked eye, and its price is lower than normal diamonds.

2. Coffee diamonds

A small amount of coffee color is entrained in diamonds, which does not affect their classification. A small amount of brown can be seen under the color card, and brown diamonds are divided into mild, moderate and severe.

Explanation of coffee cream color in diamonds: coffee cream diamonds are brown series diamonds, and the color grading system of diamonds can evaluate two kinds of diamonds, one is white to light yellow, and the other is brown to light brown. The color of diamonds varies with different coloring elements, and they also belong to colored diamond series. Among the detailed parameters of diamonds, there is a "BR" item, which is the "coffee cream color" of diamonds.

1.C2: 1。 Brown (br): 1) br (brown) 2)FT (other variegated tones) 3)P (pink tone) 4)GR (green tone) 5)BL (blue tone) 6) empty (no brown tone) 2. Cream. M2 (medium cream) 4)M3 (deep cream) 2, K 1: 1+0. Brown (colsh): 1) WH/OWH (normal color 3)M2)BRN (light coffee), BRN 1, BRN2, BRN3 (increasingly serious 4)M3)Pnk/PINK (pink) 4)ORG (orange) 5)GRN. Cream color (MLK): 1) M0 (no cream color). N N 1: 1+0。 Brown (SRK): 1) Brown (brown) 2) Other irrelevant 2. Lust:1) ex, VG, GD (no cream color) 2)M 1.