Welcome to the Garnet Jewellery collection from Bijou Jewellery. Garnet is a mineral gemstone which is most commonly seen in jewellery as a rich dark red gemstone. Garnet is also found in a variety of shades including orange, green and purple. The rarest type of garnet is blue, discovered the 1990's in Madagascar. Garnet is the traditional birthstone for January making it an ideal gift for anyone born in that month.