Black Tourmaline 'Paradiso Cascade' Gemstone EarringsBohemian goddess meets timeless glamor in our cascade earrings, inspired by the beauty and drama of nature. Raw stones are exquisitely handset over four tiers to capture light and movement. Pitch black power stone, black tourmaline, is the supreme talisman for grounding and protection for mind, body and soul. Black tourmaline gem rocks descending in size from around 0. 75" or 2cm, to 0. 5"or 1cm wide. Sterling silver or 18K gold vermeil setting and