Red Ruby
Magnet Mineral Resources
Precious
Ruby, known for its bright red colour, is a variety of the corundum mineral. All other varieties of the mineral are sapphires. Like sapphires, rubies are second only to diamonds in their hardness and brilliance, but they are rarer than both diamonds and blue sapphires. Sheila's Celtic Knotwork Ring in 18ct yellow gold is hand-set with a ruby in our Orkney workshop.