Highest Carat Diamond You Can Buy

Highest Carat Diamond You Can Buy

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A rare 555.55 carat diamond will be the largest to ever appear at auction when it hits the market in February, part of a special single-lot sale that will accept cryptocurrency for the record-breaking jewel.

In 2006, the jewel was named the largest cut diamond in the world by the Guinness Book of World Records, two years after both the Gemological Institute of America and Gübelin, a Swiss gem house, named it the largest fancy black natural color diamond in the world.

While we all have heard of famous diamonds like the Cullinan Diamond in the British Crown Jewels, you may not have heard about the truly massive diamonds found recently, all worth millions and millions of dollars.

Frederick Wells, superintendent of the Premier Mine, near Pretoria in Transvaal, what is today South Africa, found the big diamond crystal near the surface of the mining pit. He initially didn't think the large crystal could really be a diamond.

The second largest diamond cut from the Cullinan is a 317.40-carat cushion-cut diamond sometimes called the Second Star of Africa. The Cullinan II Diamond is set in the Imperial State Crown of the British Crown Jewels and is also on display in the Tower of London.

For colorless gems, the most expensive diamond per carat is the 76-carat Archduke Joseph Diamond which sold for $21.5 million, or $282,894 per carat. That means the Cullinan Diamonds, taken together, are worth much more than $300 million. Estimates of their value, which is enhanced by their status as part of the crown jewels as well as their much larger size, go as high as $2 billion.

But the 1,758-carat Karowe gem is significant for another reason besides its value, which is less than the other diamonds on this list: in the past, this kind of diamond would have been crushed during rough processing. Today Lucara is using new technology, X-ray transmission sorting equipment from Tomra Sorting Solutions, which can pick out diamonds even if they are dark or rare type II diamonds.

When the 995-carat rough Excelsior diamond was discovered at the Jagersfontein Mine in South Africa in 1893, no one initially wanted to buy it. So it was cut into many small diamonds, its potential to produce a gem as breathtaking as the Graff Lesedi La Rona was discarded. The largest of the diamonds cut from the massive colorless rough gem, the 70-carat Excelsior Diamond, was set in a bracelet by Mouawad Jewelers. The Excelsior Diamond is worth more than $10 million.

The 910-carat Lesotho Legend was discovered By Gem Diamonds at the Lestseng Mine in South Africa, which is another diamond mine that is famous for the size and quality of the diamonds it produces. The mine is 10,000 feet above sea level. The rough diamond sold for $40 million in March 2018 but no cut gems have yet been unveiled.

The 813-carat Constellation Diamond was discovered by Lucara Diamond at the Karowe Mine in Botswana in 2015, the same year and mine where the Lesedi La Rona was also found. It was purchased by de Grisogono for more money than the Lesedi La Rona: $63 million. It also has exceptional color and clarity. Will it produce a larger cut gem than the 302.37-carat square emerald cut Graff Lesedi La Rona De Grisogono must think so.

People often assume a diamond's size is synonymous with its carat weight. But this is not always the case - there are other factors that can affect the size of a diamond. For example, the cut of a diamond has a significant impact on its diameter and brilliance. So, diamonds with a poorer cut - such as a change of depth or a thick girdle - will retain their heavy weight but appear smaller as their weight sits in the base of the diamond, leaving less surface area on top.

Looking to buy a diamond engagement ring Now that you understand what diamond carat means, be sure to read our diamond carat guide to ensure you choose the perfect diamond carat weight for your engagement ring!

The modern carat system began with the carob seed - a seed from a tree that grows in the Mediterranean and has fruit pods that contain multiple seeds. Those very early gem traders used small uniform seeds as counterweights to balance their scales. The modern diamond carat system was adopted by the United States in 1913 and other countries soon followed later. Today, a diamond carat weighs exactly the same in every corner of the world.

We estimate that a 1 carat diamond can cost anything between 6,000 and 10,000. However, the cost of a 1 carat diamond can vary drastically depending on the quality of the other 4Cs. Equally, lab grown diamonds cost less than natural diamonds despite sharing the same chemical and physical properties.

Diamond clarity is a qualitative metric that grades the visual appearance of each diamond. The fewer inclusions and blemishes a diamond has, the better its clarity grade will be based on the GIA diamond clarity chart.

What is diamond clarityWhat is a diamond clarity chartHow are clarity grades determinedWhat is the GIA diamond clarity grading scaleWhat are the common mistakes made with diamond clarityWhat are the types of inclusions in diamond clarityWhat is the best diamond clarity gradeBuying tips for diamond clarityWhat is a clarity-enhanced diamondBottom line recommendation

Mike Fried has written hundreds of articles and helped answer more than 30,000 emails from our readers. This has given him a unique perspective on what information truly helps our readers in their quest for finding the perfect diamond engagement ring or piece of jewelry.

As the AGS explains, inclusions usually develop as a result of heat and pressure, while blemishes tend to appear during the cutting and polishing process, or as a result of wear that affects the surface of the diamond.

When determining the clarity of diamonds on a clarity scale, experts will note the appearance of the diamond when it is face up, with a microscope at 10x magnification and eye visibility. However, to identify any diamond inclusions there may be, a higher power than 10x will be used. Otherwise, it may be too difficult to determine.

The reality of diamond clarity is that many of the inclusions that make the difference between an FL or IF (flawless or internally flawless) clarity grade and a VVS1 clarity grade, for example, are completely invisible to the naked eye.

It should become clear from the images below why it is so crucial to only buy diamonds from an online vendor (Like James Allen, Blue Nile and Brian Gavin Diamonds) that provides you with high-quality images of their diamonds.

Unlike VVS2 clarity inclusions, a microscope is never needed to locate a VS1. As you can see if you click on the sample diamond here, a VS1 clarity inclusion is still quite small and will never be visible to the naked eye.

As with the poor VS2 sample before, the diamond chosen for the sample picture of an SI1 clarity inclusion is an extreme example chosen to show the maximum size and worst possible color of an SI1. One must remember that a clarity grade can be based on many different inclusion points within a diamond. It is less common (especially for SI1 and lower) that the clarity grade is based on one concentrated inclusion.

Usually, there are a number of smaller spots and clouds of tiny spots that make up the clarity grade. In these cases, since each individual inclusion is very small, the diamond looks clean to the naked eye.

As I mentioned above, most clarity grades are comprised of several to many smaller inclusions spread out over the area of the diamond. In such cases, the I1 clarity inclusion will be much less noticeable to the naked eye, if at all.

Graining is a type of internal inclusion that develops because of irregular crystal growth. When a diamond has graining, it will show white, colored or reflective internal lines that give the diamond a very hazy appearance.

Cavities are surface dents or cracks in a diamond. They can appear colorless or colored based on the type of minerals that exist within the body of the diamond. If the crystal inclusions of the cavity are colored, they will then be much more obvious in appearance and can most likely be seen with the unaided eye.

Feathers are small cracks that, as their name suggests, have a feathery look when viewed from certain angles. Some feathers are obvious, while others are barely noticeable. When a diamond has feathers, they can either appear clear or capture light and give off a white appearance.

What is a clarity plot A clarity plot is a figure that shows the locations and types of imperfections in a diamond. The flaws are identified by a skilled grader using 10x magnification. When you purchase a diamond and receive a GIA or AGS certificate, the report usually comes with a clarity plot, especially if the diamond is 1 Carat or heavier (see an example below).

When you reach SI1 and SI2 diamond clarity scale grades, however, you begin to find a much higher concentration of diamonds with eye-visible inclusions. Because of this visibility, it is imperative to limit your search to vendors with high-quality photos.

Think of your total investment in a diamond ring as a pie. Each feature of the diamond has its own slice of the pie and the more you spend on a feature the larger its slice (and therefore, another slice or slices must become smaller).

The reason for this is that different types of diamonds show inclusions differently. For example, Asscher cut diamonds, which are cut so that nothing is hidden, are much more likely to display inclusions than round brilliant cut diamonds, which are cut for maximum light reflection.

The size of a diamond can also affect its chance of showing inclusions. As the carat weight of a diamond increases, so does the width of its table, increasing the likelihood of an inclusion being visible.

All these step-cut diamond shapes have large tables (top surface areas) that allow for a clear, unobstructed look into the diamond. This means that they display inclusions more clearly than other diamond shapes.

As these shapes