Stunning natural rough diamond of sparkling vivid blue color weighing 4.20 carats (0.84g). Natural Diamond from Africa. Dimensions: +- 10.75x7.95x6.65mm. Photos taken with and without light and with high definition camera. Ideal for gemstone collector and/or investor. The value of diamonds is constantly increasing. Can also be worked for jewelry making. No reserve price for this magnificent blue diamond!