Jewel was from the collection of Queen Nazli, former queen mother of Egypt.
Lower rates enticed consumers to spend in second fiscal quarter.
Ring featuring 3.42 carats of pink, red and blue diamonds from the mine priced at $3.8M.
Production up 43% year on year following mine takeover.
Figure flat month on month compared to 0.4% increase in August.
Miner announces several internal promotions and new members of executive committee.
Golden Canary diamond expected to bring in more than $15 million in New York.
Sotheby’s will offer eight-piece De Beers set at global Magnificent Jewels auctions.
Jewelry revenue up 25% year on year in third quarter.
Jewelry division climbed 18% year on year in second quarter.
Latest measures restrict imports of certain jewelry-related materials.