Gorgeous metallic ring by Leetal Kalmanson. The PYRAMID Black Crystal Ring features square black Swarovski crystals in a pyramid shape, decorated with a large Swarovski crystal in black color at the center. The ring has an adjustable base and fits all fingers. The PYRAMID Black Crystal Ring is ideal for impressive looks. Style it with a black dress, black pumps and a faux-fur bolero for a sophisticated look. Product Details - Swarovski Crystals. Nickel free.