This Month’s Birthstone

August - Peridot

Peridot is a member of the Olivine family of gemstones and is unusual in that it only comes in one colour, olive green. The intensity and tint of the green can vary according to how much iron is contained in the crystal structure but the most valued colour is dark olive green. Olivine in general is a very abundant mineral, but gem quality Peridot is rare and is precious. The most important deposits are in the Red Sea on the volcanic island of St John. Peridot was brought to Europe by the Crusaders in the Middle Ages and was often used for Ecclesiastical purposes. The largest cut Peridot, weighing 310 carats, was found on the island of St John, and is presently in the Smithsonian Institute in Washington DC USA.

Parrys has a small collection of Peridot Jewellery, mainly set in gold, and on display in the shop.