To complement the popular most expensive gemstones 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 gemstones.

10: 1930’s Sapphire and Diamond Ring
Sale: Sotheby’s, Geneva, 15th May 2018
Sale Price USD: $1.8 Million
Sale Price GBP: £1.3 Million

9: Exceptional Sapphire and Diamond Ring
Sale: Sotheby’s, New York, 4th December 2018
Sale Price USD: $1.8 Million
Sale Price GBP: £1.4 Million

8: Kashmir Sapphire Cabochon Ring
Sale: Christie’s, Geneva, 16th May 2018
Sale Price USD: $1.8 Million
Sale Price GBP: £1.4 Million

7: Ruby and Yellow Diamond Ring
Sale: Sotheby’s, New York, 4th December 2018
Sale Price USD: $2.7 Million
Sale Price GBP: £2.1 Million

6: 19th Century Sapphire Brooch
Sale: Sotheby’s, Geneva, 15th November 2018
Sale Price USD: $3.2 Million
Sale Price GBP: £2.5 Million

5: Cartier Sapphire Ring
Sale: Sotheby’s, Geneva, 15th November 2018
Sale Price USD: $3.8 Million
Sale Price GBP: £2.9 Million
The Most Expensive Sapphire in 2018

4: Superb Ruby and Diamond Ring
Sale: Christie’s, Hong Kong, 27th November 2018
Sale Price USD: $7.1 Million
Sale Price GBP: £5.6 Million

3: Spectacular Ruby and Diamond Ring
Sale: Sotheby’s, Hong Kong, 3rd April 2018
Sale Price USD: $11 Million
Sale Price GBP: £7.8 Million
The Most Expensive Ruby in 2018

2: Superb Sapphire and Diamond Necklace
Sale: Christie’s, Hong Kong, 27th November 2018
Sale Price USD: $14.8 Million
Sale Price GBP: £11.6 Million

1: 18th Century Natural Pearl and Diamond Pendant
Sale: Sotheby’s, Geneva, 14th November 2018
Sale Price USD: $36.1 Million
Sale Price GBP: £27.8 Million
So there it is, the 10 most expensive gemstones sold in 2018. While there were no record setting Rubies or Sapphires, one did make The World’s Most Expensive Rubies list and the Pearl at the top of the list is the most expensive single pearl ever sold.
If you enjoyed this post then check out the Most Expensive Diamonds sold in 2018 post. We would like the thank Christie’s and Sotheby’s for the images used in this post.