Opals are the birthstone of those born in October or under the sign of Scorpio. They are also given as a gift to celebrate fourteen years of marriage.
Opals are the national gemstone of Australia and have also been found on Mars.
Amethyst is the violet variety of Quartz, and the birthstone of those born in February. It is also the official zodiac stone of Pisces and a symbol of heavenly understanding.
Peridot is gem-quality forsteritic olivine and has been found in meteorites. It is the birthstone for August.
Striking pieces of modern silver jewellery featuring large opals, amethyst and peridot and decorated with gold vermeil.