Last week, on June 26th, 2015, Infanta Elena attended in Vienna (Austria) the celebrations of the 450th anniversary of the famous Spanish Riding School (Spanische Reitschule).
Besides her impressive embroidered turquoise Manilla shawl, she wore a pair of aquamarine and diamond earrings and a small diamond pendant that I had not seen earlier:
Also a bejewelled watch and a diamond double-line bangle: