From Brazil to Turkmenistan, Lydia Courteille searches the globe for the world's most precious stones. Here the designer transforms rare 8.01-carat green turquoise into a vivid flower. Framed in 18-karat blackened white gold, these handmade earrings feature a frog encrusted with 0.38-carat tsavorites climbing a 1.83-carat brown diamond stem. Wear this one-of-a-kind pair with your favorite evening looks. For pierced ears.