 The 5.03 carat Fancy Vivid Green 'Aurora Green' made $16.8m or $3.3m per carat in 2016. | Green diamonds are among the rarest of all fancy colors. The green color is caused by exposure to radiation and is extremely unique. Natural radiation creates an external skin or surface of green color. It is uncommon for the green color to reach deep within a diamond.  |
 Labs may be unable to conclusively determine the natural origin of green diamonds because the cause is radiation. | Lab graders assess the natural color of green diamonds by this skin. Irradiated green diamonds are found in the marketplace, so determining natural color for value is key. |  |
 |  |  1.56 carat, Fancy Vivid Green Diamond |
 | Natural green diamonds are second to red diamonds as the world's rarest fancy color. True greens devoid of secondary hue are the most valuable. The green diamond has a very strong emotional correspondence with safety as it is the most restful color for the human eye. Green suggests both stability and endurance. Aqua green is associated with emotional healing and protection while Olive green is the traditional color of peace. |  |
 | The Dresden Green is a 40.7 carat, pear shaped stone with a VS1 clarity grade. It is one of the largest and finest natural green diamonds ever discovered. |  |
 | The Ocean Dream The diamond is a 5.51-carat, fancy deep blue-green, shield-shaped diamond. It is the only natural diamond known with this color combination. |  |
 | The Chopard Chameleon, is a 31.31ct Oval-cut diamond which appears green in bright light but looks yellow in darkness. This stone was one of the first reported by the GIA as a chameleon in the late 1950s. |  |
 Cushion-shaped fancy intense green diamond weighing 6.13 carats, within a brilliant-cut pink diamond surround, extending to the half-hoop, mounted in 18k rose gold. |  A square-shaped fancy green diamond weighing 10.36 carats, set in a ring within a pear-shaped and round cut pink diamond surround. |  3.15 carat, Fancy Intense Yellowish Green diamond. VS1. |
 | Fancy vivid green diamond weighing 2.52 carats. It made $ 3,106,500 CHF at Sotheby's in 2009. |  |
