Most Expensive Diamond Color Grade

What color diamond is the rarest and most expensive in the world read.

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. Understanding what diamond color means helps in choosing the right diamond. Natural and real diamonds reveal blue light under black light. Diamonds with a d color grade are the most rare and expensive on the market with a significant price premium over other color grades.

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. Interestingly the diamond color evaluation of most gem quality diamonds is based on the absence of color. Normally the size of a diamond makes it rarer. 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.

Diamonds that are completely colorless are rare. A chemically pure and structurally perfect diamond has no hue like a drop of pure water and consequently a higher value. Most diamonds come from 150 250km in the lithosphere. The absence of color in a diamond is the rarest and therefore the most expensive.

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. Diamonds are scarce and expensive. 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.

Diamond is a form of carbon. Diamonds are very rigid. When buying a diamond some people may prioritize selecting a diamond with a color grade that s as close to d as possible. It has a maximum hardness.

Most diamonds have hints of color and even subtle color differences have a big impact on diamond prices. The moussaieff red diamond up to 8 million. 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. Red diamonds are among the rarest and most sought after diamonds in the world.

When color grading is done in the mounting the grade is expressed as an estimated color grade and commonly as a range of color.