To complement the popular most expensive diamonds blog series, I have looked back over all the Christie’s and Sotheby’s jewellery auctions that took place in 2018 to find the 10 most expensive diamonds.

10: Diamond Ring by Harry Winston
Sale: Christie’s, Geneva, 16th May 2018
Sale Price USD: $6.4 Million
Sale Price GBP: £4.8 Million

9: Rare Fancy Intense Blue Diamond Ring
Sale: Sotheby’s, New York, 18th April 2018
Sale Price USD: $6.6 Million
Sale Price GBP: £4.6 Million

8: The Farnese Blue Diamond
Sale: Sotheby’s, Geneva, 15th May 2018
Sale Price USD: $6.7 Million
Sale Price GBP: £4.9 Million

7: Magnificent Diamond Ring
Sale: Sotheby’s, Geneva, 15th May 2018
Sale Price USD: $8.1 Million
Sale Price GBP: £5.9 Million

6: Exceptional Diamond Ring
Sale: Sotheby’s, Geneva, 15th May 2018
Sale Price USD: $9.2 Million
Sale Price GBP: £6.8 Million
The Most Expensive White Diamond in 2018

5: Pink Diamond Heart Pendant
Sale: Christie’s, New York, 5th December 2018
Sale Price USD: $9.5 Million
Sale Price GBP: £7.4 Million

4: Fancy Vivid Blue Diamond
Sale: Sotheby’s, Hong Kong, 3rd October 2018
Sale Price USD: $13.8 Million
Sale Price GBP: £10.6 Million

3: Bulgari Blue Diamond Ring
Sale: Christie’s, New York, 5th December 2018
Sale Price USD: $18.3 Million
Sale Price GBP: £14.3 Million
The Most Expensive Blue Diamond in 2018

2: Moussaieff Blue and Pink Diamond Necklace
Sale: Christie’s, Hong Kong, 29th May 2018
Sale Price USD: $20.3 Million
Sale Price GBP: £15.3 Million

1: The Pink Legacy Diamond
Sale: Christie’s, Geneva, 13th October 2018
Sale Price USD: $50 Million
Sale Price GBP: £38.5 Million
The Most Expensive Pink Diamond in 2018
So there it is, the 10 most expensive diamonds sold in 2018. While there were no record setting Diamonds this year, there were some very special including the Pink Legacy which is the second most expensive pink diamond ever sold.
If you enjoyed this list then take a look at the Most Expensive Gemstones sold in 2018 post. We would like the thank Christie’s and Sotheby’s for the images used in this post.