Two impressive colored stones, an 8.62-carat ruby from Graff and a 27.54-carat Kashmir sapphire, will grace the Sotheby’s auction to be held in Geneva in November.
The 8.62-carat Graff ruby is a Burmese cushion-cut stone of the famous “pigeon blood” hue with the poetically eerie name. The SSEF (Swiss Gemological Institute) highly appraised the ruby’s clarity and luster, and analysts predict a sale price of $6.9 to 9 million.
Another notable lot offered by the auction house this November is a 27.54-carat Kashmir sapphire of thick blue color and extraordinary clarity, which has a price potential of $3-6 million.
Both stones were previously part of the collection of Dimitri Mavromatis, who also sent three pieces of jewelry from the French jewelry designer JAR to auction. One of these jewels, earrings with sapphires, rubies and diamonds, is capable of fetching between $400,000 and $700,000 for the auction house.