Most Expensive Diamond Color Grade

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.

Most expensive diamond color grade.

Most diamonds come from 150 250km in the lithosphere. When buying a diamond some people may prioritize selecting a diamond with a color grade that s as close to d as possible. A chemically pure and structurally perfect diamond has no hue like a drop of pure water and consequently a higher value. 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.

What color diamond is the rarest and most expensive in the world read. Diamond is a form of carbon. When color grading is done in the mounting the grade is expressed as an estimated color grade and commonly as a range of color. Diamonds are scarce and expensive.

Interestingly the diamond color evaluation of most gem quality diamonds is based on the absence of color. Diamonds that are completely colorless are rare. 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. Diamonds with a d color grade are the most rare and expensive on the market with a significant price premium over other color grades.

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. Most diamonds have hints of color and even subtle color differences have a big impact on diamond prices. Natural and real diamonds reveal blue light under black light. Normally the size of a diamond makes it rarer.

It has a maximum hardness. 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. Diamonds are very rigid. They can be stored for billions of years.

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. Red diamonds are among the rarest and most sought after diamonds in the world. Diamond color grading. The absence of color in a diamond is the rarest and therefore the most expensive.

The moussaieff red diamond up to 8 million.