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Peridot is an olivine coloured gemstone which is a mineral composed of magnesium-iron silicates.

It’s colour from a green olive to lime green – which is due to the presence of iron and can also appear to have a hint of brown – the latter having a higher amount of iron.

Some of the finest peridot stones are called “evening emeralds” because they appear greener under artificial light.

These crystals are sourced from many countries such as Burma, Norway, Brazil, China, Kenya, Sri Lanka, Australia, and Mexico.

According to history, the Peridots were a prized gem late in the Ottoman empire (1300-1918). Turkish Sultans collected what is believed to be the world’s largest collection.

The gold throne in Istanbul’s Topkapi museum is decorated with 955 peridot cabochons (gems or beads cut in convex form and highly polished) up to 1 inch across, and there are also peridots used as turban ornaments and on jewelled boxes. The largest stone is believed to be a 310 carat gem that belongs to the Smithsonian. A 192 carat stone of fine clear olive-green is part of the Russian crown jewels, in the Kremlin.