The coral atoll of Apataki basks in amber's sunshine in a tropical design by Warren and Robbin. Carved by hand, a ring of polished bone hosts two uncut gemstones, held in place by sterling silver. Because each piece is individually handcrafted from natural materials, slight variations are to be expected. .925 Sterling silver When used in jewelry, amber beads can include a stunning arrangement of tones and hues. Natural amber ranges from yellow to deep orange. It may sometimes even have a green cast to it, as well as opaque swirls within. Because amber is the preserved resin of prehistoric trees that grew millions of years ago, it sometimes has tiny inclusions of plants and insects - making it highly prized.