The “Sunrise Ruby” a 25.59-carat Burmese stone, sold for $30.3 million ($1.184 million per carat) in May, 2015. The price is a new record for any ruby, a new record per carat, and for any stone by Cartier.
16.08 carat Fancy Vivid Pink Diamond, “The Sweet Josephine” $28,523,925 at Christie’s in November.
Emerald-Cut Diamond, 100.20 Carats, D-flawless — one of only six 100-carat-plus “perfect” diamonds to hit the auction block in the past 25 years — fetched $22.1 million at Sotheby’s in April
“The Crimson Flame,” 15.04 carats Burmese ruby made $18m in December 2015, setting a world auction record for a ruby of $1.2 million per carat.
Etcetera Ruby and Diamond Latticework Necklace, 120.74 Carats. $13,006,656 at Christie’s.