Adjustable Baltic AMBER Sterling Silver 925 Gemstone Ring - (ABR0507173)A very elegant large Baltic Amber ring set in a stylish Sterling Silver design. A great statement piece ! Would make a great gift or a lovely treat for yourself! This unique ring comes in a lovely presentation box too! Width of Ring 20 mm; Length 30 mm. Weight 12. 7 g. Gemstone for the Zodiac sign of Cancer Amber is technically not a gemstone or mineral, but a fossilized sap from prehistoric trees that has aged over the course of millions of years.