Amulets are good luck charms that protect the wearer from harm and so it was with my Amulet ring that I wanted to protect those who wear them. The design focuses on a central large stone - amethyst (that protects from inebriation) or tourmalines (that protect from stress) - with rose cut diamonds and either a ruby or sapphire cabochon to either side on the shank. A modern design that feels it has been around for years.

Tourmaline comes from the Sinhalese term "turamali" meaning 'stone of mixed colours'. As part of an isomorphous series, in which a range of chemical compositions occur in many individual crystals, they can be found in almost every colour. From pinks, reds, forest greens and blues, colourless and transparent to multi-coloured and opaque shades, making it one of Cassandra's favourite gemstones. The birthstone for October, it appears to have an affinity with the autumnal time of year, its myriad of colours resembling autumn leaves, falling in a cacophony of colour. Turn to pink tourmalines for an emblem of friendship and unconditional love, or delight in vibrant green tourmaline to harmonise your internal energies.