|The rarity of chameleon diamonds is due to their unusual ability to change color temporarily when heated to about 150°C, or after prolonged storage in the dark.|
Chameleon diamonds will show different colors if observed under halogen light, incandescent light and daylight. If Chameleon diamonds are exposed to heat they can change to a greenish-yellowish color very quickly and when they cool down and stabilize their normal color will return; this is known as thermochroism.
|In the case of Chameleon diamonds, an excess of hydrogen and a small amount of nitrogen has entered the diamond and this creates the unique colour-changing property. Most Chameleon Diamonds return to a green shade after exposure to heat or light. These diamonds usually fluoresce yellow. They often take on a strong red glow when they are being polished.|
|The Chopard Chameleon Diamond is a 31.32 carat oval-cut chameleon diamond and the largest known.|
0.49 Carat VS1 Pear Shape Fancy Dark Chameleon Diamond
0.50 Carat Cushion Fancy Deep Chameleon Diamond
0.52 carat Fancy Deep brownish Greenish-Yellow Chameleon diamond.