Once Cleopatra’s alleged favourite gemstone, the glamorous emerald continues to impress everyone from royals to the red carpet’s best dressed. Beloved for their rich, exotic colour, emeralds are a bluish-green variety of the mineral beryl. When chromium, vanadium and iron are present in beryl, emeralds form, and the varying presence of these three elements results in a range of colours. If the stone’s hue is too yellow or blue, it is not an emerald but rather a variety of beryl, which makes highly transparent and vividly saturated green emeralds extremely valuable and coveted. In honour of May’s birthstone, we selected 20 extraordinary emerald jewels from our past and upcoming auctions around the world. –Stephanie Sporn
Magnificent Jewels and Noble Jewels, Sessions 1 and 2
16 May | Geneva
Magnificent Jewels and Noble Jewels, Session 3
16 May | Geneva
Fine Jewels
7 June | London