The ICE BLUE color was developed to answer the growing demands of the Japanese market. The color has since become a hit in Europe and with high-end jewelry manufacturers The source for ICE BLUE are the white diamond H to D, which explains the cost, the highest in our blue collection. ICE BLUE is a light blue color, just like a natural fancy blue diamond. This color is one of the three lightest colors in our collection: Ice Blue, Pine Green and Sunny.