Two pear-shaped diamonds larger than 100 carats — one D-flawless and the other fancy deep orange-brown — will headline Sotheby’s Magnificent Jewels auction in New York on June 16. Named “Juno” to honor the ancient Roman queen of the gods, the 101.41-carat, D-color, internally flawless rarity is expected to fetch more than $10 million. Sotheby’s […]