Gemstones
A gemstone is a mineral, rock or petrified material that when cut or faceted and polished can be used in Fine Jewellery. Some are organic, or come from living substances; amber being fossilised tree resin; jet, a form of coal and the pearl which develops from the nacre of living molluscs; and some are minerals that have developed over many years.
You can learn more about each gemstone with Astley Clarke's comprehensive guide - scroll through the left hand menu to find out more about gemstones.
View all Gemstone Jewellery at Astley Clarke