Most Expensive Diamond Ring

The most expensive diamond ring in the world is the Chopard Blue Diamond Ring. It has a price tag of $16.26 million. It is a 9 carat blue diamond mounted on 18 carat white gold. Blue diamonds are extremely rare, which explains the price.

Other Pricey Diamonds

In May 2009, a 7.03-carat blue diamond was purchased at Sotheby’s in Geneva for $9.5 million. This blue diamond was polished from a 26.58-carat diamond mined in South Africa. In October 2007, a 6.04-carat blue diamond went for $7.9 million in Sotheby’s in Hong Kong.

Sotheby’s have also sold diamonds worth $4.9 and $4.7 million. The Hancock Red Diamond sold for $880,000 in 1987. This .95 carat diamond was sold for $926,000 for every carat.

Elizabeth Collection of House of Taylor Jewelryhas a diamond ring valued at $1.3 million. The ring has 5.98-carats. There are 3.96 carats worth of diamonds around it.

While the Chopard is the most expensive diamond ring, there is debate as to what the most expensive diamond is. The Hope Diamond is a 45.52 carat blue diamond and is considered extremely valuable.
Some experts place its value at $300-350 million. The Cullinan Diamonds in the British Crown Jewels have an estimated value of $400 million.

The 4 Cs

The 4 Cs determine the value of a diamond ring. The Cs are color, carat, clarity and cut.


The diamond’s cut determines its sparkle and brilliance. The cut’s depth and width has an effect on its brilliance. Cuts that are too shallow or deep will remove some of the brilliance. For gemologists, the cut is the most crucial factor. Even if the diamond has a pure color, a poor cut will remove its brilliance.


The colors are also important. The most expensive are the colorless ones. The less color in the diamond, the more colorful its prism will be. A small amount of color affects the prism.


Clarity refers to the amount of inclusions (scratches) present in the diamond. Flawless diamonds have the highest grade. Flaws visible to the human eye have the lowest grades.


The carat refers to the size of the diamond. Large carats are harder to find, so they are more valued. A 4 carat diamond is worth more than a couple of 2 carat diamonds together.

Whether you want to buy the most expensive diamond ring or a cheaper one, make sure you do so from a reputable dealer. Just like other jewelry, fake diamonds proliferate.

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