The 20 Most Expensive Diamond in the World

This is a relatively simple post that took many hours of researching auction sale results but the result is one of the most comprehensive lists of the 20 most expensive diamonds in the world.

20: The 'Perfect' Emerald Cut Diamond
Colour: Colourless
Carat Weight: 100.20
Auction: Sotheby's, New York, 21st April 2015
Sale Price USD: $22 Million

19: The Perfect Pink
Colour: Pink
Carat Weight: 14.23
Auction: Christie's, Hong Kong, 29th November 2010
Sale Price USD: $23.1 Million

18: The Winston Blue
Colour: Blue
Carat Weight: 13.22
Auction: Christie's, Geneva, 14th May 2014
Sale Price USD: $24.1 Million

17: The Wittelsbach Diamond
Colour: Blue
Carat Weight: 35.56
Auction: Christie's, London, 10th December 2008
Sale Price USD: $24.3 Million

16: Cullinan Dream
Colour: Blue
Carat Weight: 24.18
Auction: Christie's, New York, 9th June 2016
Sale Price USD: $25.3 Million

The Winston Blue Diamond

The Cullinan Dream

15: The Winston Legacy
Colour: Colourless
Carat Weight: 101.73
Auction: Christie's, Geneva, 15th May 2013
Sale Price USD: $26.7 Million

14: Sweet Josephine
Colour: Pink
Carat Weight: 16.08
Auction: Christie's, Geneva, 10th November 2015
Sale Price USD: $28.5 Million

13: The Oval White Diamond
Colour: Colourless
Carat Weight: 118.28
Auction: Sotheby's, Hong Kong, 7th October 2013
Sale Price USD: $30.7 Million

12: The Unique Pink Diamond
Colour: Pink
Carat Weight: 15.38
Auction: Sotheby's, Geneva, 17th May 2016
Sale Price USD: $31.5 Million

11: The Pink Promise
Colour: Pink
Carat Weight: 14.93
Auction: Christie's, Hong Kong, 28th November 2017
Sale Price USD: $31.8 Million

The Unique Pink

The Pink Promise

10: De Beers Millennium Jewel 4
Colour: Blue
Carat Weight: 10.10
Auction: Sotheby's, Hong Kong, 5th April 2016
Sale Price USD: $32 Million

9: The Zoe Diamond
Colour: Blue
Carat Weight: 9.75
Auction: Sotheby's, New York, 20th November 2014
Sale Price USD: $32.6 Million

8: Grisogono Diamond
Colour: Colourless
Carat Weight: 163.41
Auction: Christie's, Geneva, 14th November 2017
Sale Price USD: $33.7 Million

7: The Orange
Colour: Orange
Carat Weight: 14.82
Auction: Christie's, Geneva, 12th November 2013
Sale Price USD: $35.5 Million

6: The Princie Diamond
Colour: Pink
Carat Weight: 34.65
Auction: Christie's, New York, 16th April 2013
Sale Price USD: $39.3 Million

The Zoe Diamond

The Orange

5: The Memory of Autumn Leaves
Colour: Blue
Carat Weight: 14.54
Auction: Sotheby's, Geneva, 16th May 2017
Sale Price USD: $42 Million

4: The Graff Pink
Colour: Pink
Carat Weight: 24.78
Auction: Sotheby's, Geneva, 16th November 2010
Sale Price USD: $46.1 Million

3: The Blue Moon of Josephine
Colour: Blue
Carat Weight: 12.03
Auction: Sotheby's, Geneva, 11th November 2015
Sale Price USD: $48.4 Million

2: Oppenheimer Diamond
Colour: Blue
Carat Weight: 14.62
Auction: Christie's, Geneva, 18th May 2016
Sale Price USD: $57.5 Million

1: The Pink Star
Colour: Pink
Carat Weight: 59.60
Auction: Sotheby's, Hong Kong, 4th April 2017
Sale Price USD: $71.1 Million

The Oppenheimer Diamond

The Pink Star