Naturally Colored Diamonds

 

Naturally colored diamonds are both rare and expensive. While brides often prize colorless brilliant stones, many of the world's most famous diamonds are colored. For example the Tiffany diamond is yellow and the Hope diamond is blue. Diamonds pick up color during their formation deep in the Earth's crust or shortly thereafter. Brown, pink, and red diamonds absorb green light because of a distortion in their lattice, which takes place when they are still buried deep in the Earth's mantle layer and subjected to great pressure and heat. Grey and blue diamonds contain boron that binds to their lattice and subsequently absorbs yellow, red, and green light. Green diamonds have absorbed intense radiation just before exiting the Earth's crust. Yellow and orange diamonds contain nitrogen that has assembled in a way that absorbs blue light. Purple and violet diamonds have lattice distortion and also may have hydrogen within their structure, which gives the stone a violet or purplish hue. Nowadays, scientists have developed artificial ways of creating colored diamonds by exposing them to intense radiation followed by intense heat. The coloration process is considered permanent; however, may revert when the stones are exposed to high heat during the repair process. Since naturally as opposed to artificially colored diamonds are so expensive (the price of a natural blue diamond has risen from $5,000 – 2 million dollars in the last forty years), you should request to see a certificate from a trusted grading lab before buying one. ****************************************************************************************** TREAT LESS DESIRABLE DIAMONDS WITH IRRDIATION THEN INTENSE HEAT. BORWN YELLOWISH DIAMONDS INTO GREENS, BKLUES, YELLOWS, REDS, PURPLES, AND OTHER COLORS considered permanent but possibly could change if exposed to high het during repairs, Most naturally colored diamonds are rare natural colored diamonds get color from trace elements such as nitrogen which creates a yellowish stone, also if stones were exposed to radiation during creation, green diamonds were affected by radiation, inclusions give diamonds unique tones and brilliant flashes of color, Stones being sold as natural colored need a certificate from a trusted grading lab, Fancy - naturally colored red, green, purple, violet, orange, blue and pink faint to intense Most famous diamonds are colored Tiffany diamond – yellow Hope diamond – blue, colored diamonds raise in value blue and pink diamonds double every year in a strong economy, Grey and Blue – boron which binds to the lattice and absords yellow red and green, Brown pink, red – distortion of lattice due to intense heat and pressure when still embedded deep in earth’s crust, causing it to absorb a particular band of green, green – just before exiting the earth's last layer of crust they absorb intense radiation yellow-orange – nitrogen within the diamond assembled in a way that absorbs blue light purple violet – lattice distortion and some absorption of hydrogen