A chemically pure and structurally perfect diamond has no hue like a drop of pure water and consequently a higher value.
Most expensive diamond color grade.
Of these the most expensive was a rectangular 163 41 carat diamond which sold for 33 7 million at christie s in geneva while the most paid for an oval variety stands at 30 8 million in 2013.
Grading mounted diamonds involves holding the mounted diamonds table close to the table facet of the master stone and visually comparing the diamond color under the same color conditions as unmounted diamond grading.
When buying a diamond some people may prioritize selecting a diamond with a color grade that s as close to d as possible.
Normally the size of a diamond makes it rarer.
Diamonds with a d color grade are the most rare and expensive on the market with a significant price premium over other color grades.
When color grading is done in the mounting the grade is expressed as an estimated color grade and commonly as a range of color.
Diamond color grading.
E most of the time the differences in color between a d and e diamond are only visible to an expert gemologist when the two diamonds are viewed under magnification.
Discovered in brazil in the 1990 s the moussaieff red formerly known as the red shield is currently the largest natural colored fancy red diamond graded by the gemological institute of america gia.
Natural and real diamonds reveal blue light under black light.
Typically colorless diamonds def grades are the most desirable while diamonds on the lower end of the grading scale d z are less appealing as they lack the crisp white light return.
Diamonds are very rigid.
A white diamond with a d color grade is the most expensive white diamond color as these diamonds allow more light to pass through the stone creating a sparkling appearance.
Interestingly the diamond color evaluation of most gem quality diamonds is based on the absence of color.
Most diamonds come from 150 250km in the lithosphere.
Understanding what diamond color means helps in choosing the right diamond.
It has a maximum hardness.
The moussaieff red diamond up to 8 million.
Diamond is a form of carbon.
What color diamond is the rarest and most expensive in the world read.
While the majority of our customers choose a d or e color grade many go with a beautiful near colorless grade to make the most of their budget and allocate more on the best cut that they can afford which gives them more sparkle.
They can be stored for billions of years.
Natural diamonds as well as lab diamonds are available in many colors and tints the traditional clear stones found in most engagement and wedding rings are known as known as white diamonds whereas fancy colored diamonds are the vivid shades like pink green and yellow.
Red diamonds are among the rarest and most sought after diamonds in the world.
The absence of color in a diamond is the rarest and therefore the most expensive.
