With this absolutely colorless diamond, white light penetrates the stone and exits in the colors of the rainbow, making a diamond sparkle particularly beautifully when light hits it from above. They are the most expensive of all white diamonds and are therefore suitable as an investment stone from approx. 0.50 carats in the highest purity = flawless.
 
The color River (new designation: D or E) designates diamonds of the best color grade = very fine white (+) or colorless.
 
River diamonds are also available up to a size of 0.07 carat 
Tooth jewellery very popular.
 
 
What do the purities mean?
The basis is the view through the 10x magnifying glass:
 
No inclusions are visible at 10x magnification, the stone is flawless (LC) or IF (internally flawless)
 
If inclusions are (very) difficult to detect, the purity is referred to as VVS = very very small inclusions or VS = very small inclusions
 
If inclusions are visible at 10x magnification, this is referred to as SI = small inclusions
 
Noticeable inclusions begin with the designation P1 and end at P3.