This is because most of them feel that fancy 
colored stones allow them to make a strong statement through their 
wedding and
 engagement rings. This has in turn increased the demand and sale of fancy colored 
diamond rings.

Purple 
diamond engagement rings are considered as one of the most valuable colored 
diamond rings. These types of 
diamond rings have made news on several occasions but one of the well-known stories regarding purple 
diamond rings involves the NBA legend, Kobe Bryant and his wife. Kobe is one of the most famous basketball players and he has won NBA championship on three different occasions.
 
 
Kobe gifted a unique 8-
carat purple 
diamond ring to his wife, Vanessa, to tell her how much he loves and adores her. The price of the Kobe Bryant 
diamond ring was estimated to be around 4 million dollars. The 
diamond contained multiple numbers of white 
diamonds whose carat weight was rumored to be around 4.87 
carats. The white 
diamonds were set on about 70 grams of 14 karats 
white and 
yellow gold.