COLOURS INSPIRED BY NATURE. Handmade using haematite, sparkling Swarovski® crystals, golden stainless steel and synthetic tiger's eye, these earrings from the famous GeoCUBE® collection combine sunny golds with bright blues.COLOURS INSPIRED BY NATURE. Handmade using haematite, sparkling Swarovski® crystals, golden stainless steel and synthetic tiger's eye, these earrings from the famous GeoCUBE® collection combine sunny golds with bright blues.