1. The Golden Jubilee

1. The Golden Jubilee

Weight: 545.67 carats

The Golden Jubilee, with the weight of 545.67 carats, is the largest faceted diamond in the world. Rough stone weighed 755 carats and was discovered in Premier mine, South Africa in 1985. The Golden Jubilee was presented to the King of Thailand in 1997 for his Golden Jubilee - the 50th anniversary of his coronation. Prior to this event, the stone was simply known as the Unnamed Brown. Estimated value of the Golden Jubilee is $4-$12 million.

2. The Cullinan I - aka the Star of Africa

2. The Cullinan I - aka the Star of Africa

Weight: 530.20 carats

The Cullinan I, a pear shaped diamond weighing 530.20 carats is also known as the Star of Africa. It measures 53mm x 44mm x 29mm, and has 76 facets. It's called the Cullinan I because it is the largest of 9 large stones cut from the 3106 carat Cullinan Diamond. Cullinan I was placed by King Edward in the Sovereign's Royal Sceptre as part of the Crown Jewels, and it is now on display in the tower of London. Estimated value of Cullinan I is over $400 million!

3. The Incomparable

3. The Incomparable

Weight: 407.48 carats

The Incomparable, in its rough state weighing 890 carats, was found in the town of Mbuji Mayi in the Democratic Republic of Congo (formerly Zaire) in the 1980s. Four years were spent studying and then cutting the stone, the biggest piece of rough ultimately yielded a gem weighing 407.48 carats; it is the third largest diamond ever cut. Internally flawless clarity and fancy brownish-yellow in color, it measures 53.90 × 35.19 × 28.18 mm.

4. The Cullinan II

4. The Cullinan II

Weight: 317.40 carats

The Cullinan II is the massive 317.40 carat cushion shaped diamond in the center-front of the Imperial State Crown of Great Britain. Cullinan II was cut from the largest gem-quality diamond ever found, it weighed 3106 carats, or about 1 1/3 pounds. It was named after Sir Thomas Cullinan, who opened the mine and was visiting on that eventful day. The nine larger stones of the Cullinan diamond remain either in the British Crown Jewels or in the personal possession of the Royal Family.

5. The Spirit of de Grisogono

5. The Spirit of de Grisogono

Weight: 312.24

The Spirit of de Grisogono, at 312.24 carats, is the world's largest cut black diamond, and world's 5th largest diamond. In a white gold mounting, it is set with 702 white diamonds totaling 36.69 carats. This diamond originally had a rough weight of 587 carats and was mined several decades ago in west Central Africa before being imported into Switzerland.

6. The Centenary

6. The Centenary

Weight: 273.85 carats

The Centenary was found in Premier mine in 1986, in its rough form it weighed 599 carats. When cutting was completed the Centenary weighed 273.85 carats, measured 39.90 × 50.50 × 24.55 mm, and had 247 facets - 164 on the stone and 83 around its girdle. Never before had such a high number of facets been polished onto a diamond. The true value of the Centenary diamond is unknown, but the diamond was insured for around $100 million in 1991.

7. The Jubilee

7. The Jubilee

Weight: 245.35 carats

The Jubilee is a colorless cushion-shaped diamond with a weight of 245.35 carats. The original rough stone, an irregular octahedron without definite faces or shape weighed 650.80 carats and was found in the Jagersfontein Mine towards the end of 1895. When during the cutting it became evident that a superb diamond of exceptional purity and size was being produced, it was planned to present it to Queen Victoria. In the end this did not happen and the diamond remained with its owners. The following year marked the Diamond Jubilee of Queen Victoria (the 75th anniversary of her coronation) so the gem was renamed the Jubilee to commemorate the occasion.