World Most Expensive Diamond.

Koh-I-Noor means as “Mountain of Light” from

Persian. It’s a 105 carat (21.6 grams) diamond

that was once the largest known diamond in the

world. The Koh-I-Noor was originated at

Golconda in the Andhra Pradesh state of India. It

was owned by various Sikh, Mughal and Persian

rulers that fought each other from time to time.

The stone was found to measure 36.00 × 31.90 ×

13.04 mm. The gem remains the property of the

British crown and is kept in HM Tower of London

and it’s a popular tourist attraction.

2. The Sancy Diamond : (Unestimated, Priceless)

The Sancy diamond is 55.23 carat (11.05 grams)

of pale yellow diamond that once was famous as

the belonging of the Great Moguls. It’s believed

that the diamond is Indian origin. This is the first

large diamonds to be cut with symmetrical

facets. The stone is also unusual because it has

no pavilion – just a pair of crowns, one on the

other. This historical diamond is now kept in the

French Crown Jewel collection housed at the

Louvre.

3. The Cullinan : $ 400 Millions

The Cullinan Diamond is 3,106,75 carats (621.35

grams) diamond and is the largest rough gem

quality diamond ever found in the world. After

polished it become Cullinan I or Star Africa first

and at 530.2 carats (106.0 grams) is the largest

diamond in the world until 1985 with the Golden

Jubilee of 545.67 carats (109.13 grams) from the

same premier Mine.

5. De Beers Centenary Diamond: $ 100 Millions

The De Beers Centenary Diamond were classified

as D levels by the Gemological Institute of

America. It’s the highest grade of a diamond that

colorless and internally and externally flawless.

The diamond itself is 273.85 carats (54.77

grams) in weight. This diamond is the 3rd largest

diamond has been produced by De Beer’s Premier

Mine.

4. The Hope Diamond : $350 Millions

The hope diamond is 45.52 carats (9.10 grams)

large diamond that now located in the

Smithsonian Museum of Natural History in

Washington DC. The diamond looks blue in color

to the naked eye because the number of traces of

boron in the crystal structure but It shine a red

phosphor under ultraviolet light.

5. The Steinmetz Pink : $ 25 Millions

The Steinmetz Pink is 59.60 carats (11.92 grams)

of diamond that rated as Vivid Pink by the

Gemological Institute of America. It’s the largest

known diamond that given a color as Fancy vivid

pink ever. The Steinmitz Pink was displayed as

part of Smithsonian’s “The Splendor of Diamons”

exhibition.

6. The Allnatt Diamond : $ 3 Millions

This diamond is named after Major Alfred Ernest
Allnatt. He was one of the holders of the
diamond. The Allnatt diamond has size of 101.29
carat (20.258 g) with a cushion cut. The diamond
color is rated as fancy vivid Yellow by the
Gemological Institute of America. No one know
precisely where the diamond was found. But
some expert say that the diamond was found
where the De Beers premier diamond mine now
located.