Kosmos Black Sapphire and Marcasite Ring in Sterling Silver Menta verde featuring a central oval black

featuring a central oval black onyx cabochon gemstone surrounded by sparkling marcasite

This necklace from the Gemondo Floral collection features a traditional cluster pendant arranged into a flower

9ct yellow gold ring with a diagonal row of oval cut light blue kanchanaburi sapphire gemstones crossed with single cut white diamonds

featuring an oval shaped emerald gemstone decorated with a sparkling diamond

An eye-catching turquoise pendant crafted from 925 sterling silver featuring a cushion sugarloaf turquoise cabochon

Kosmos Black Sapphire and Marcasite Ring in Sterling Silver Menta verde featuring a central oval blackAbout This Item A striking statement ring with black sapphires and sparkling marcasite stones in a multi band design inspired by the celestial shapes of the cosmos. Gemstone Information Marcasite items, including jewellery, have been found in ancient Incan tombs. It is thought that the Incas even created marcasite plates and surfaces to be used in worship of sun gods. It has also been said that Native Americans once used marcasite, or pyrite as it is