Orange is the shade of energy, joy and warmth. Apply it to diamond and you will get an unbelievably beautiful combination. According to the rule of diamond color grading the orange diamond is the one that has from 25% to 50% orange color. Even though yellow and orange diamonds do not belong to most rare gems, there is only one world known 100% orange diamond – “Pumpkin” that was set in a ring and was once worn by Hally Berry during 2002 Academy Awards. Graded as fancy vivid orange diamond it is priced at about $3 million. More about orange diamond details read here:
Pure orange diamonds are very rare, as it is more common to find orange diamonds with secondary colors. Larger orange diamonds with natural vivid color command high prices at auction and make headlines, as they seldom appear. The 4.19 carat fancy vivid orange diamond (below) sold for a record price of $2.95 million in October 2011. The size and vivid color of the stone make it one of the finest natural orange diamonds to date.
4.19 carat fancy vivid orange diamond ring
Orange Diamond Details
Secondary Colors: Orange is the color between red (pink) and yellow so common secondary colors in orange diamonds include, pinkish orange, yellowish orange, and if the color is darker and/or desaturated, brownish orange.
Rarity: Pure orange diamonds devoid of secondary colors rare and rather expensive. It is more common to find orange diamonds with secondary hues.
Grading: Orange diamonds are graded as Faint Orange, Very Light Orange, Light Orange, Fancy Light Orange, Fancy Orange, Fancy Intense Orange, Fancy Dark Orange, Fancy Deep Orange, and Fancy Vivid Orange.
Orange Diamond Gallery
.31ct yellowish orange diamond
.42ct fancy vivid yellow orange diamond (right)
.12ct orange diamond
.33ct fancy vivid yellowish orange diamond
This information is taken from http://www.pricescope.com/wiki/fancy-color-diamonds/orange-diamonds