The Ocean Dream is a diamond measuring 5.51 carats (1.102 g), rated in color as Fancy Deep Blue-Green by the Gemological Institute of America. The Ocean Dream is the only natural diamond known to the GIA to possess a blue-green hue, making it one of the rarest diamonds in the world. (A blue-green colour is commonly seen in artificially enhanced diamonds, whose colour is imparted by various irradiation methods.) After careful study, the GIA concluded that its distinct hue is a result of millions of years of exposure to natural radiation. The Ocean Dream originated in Central Africa, and is currently owned by the Cora Diamond Corporation.
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