Classic Round Blue Topaz & Diamond Eternity Ring in 9ct Yellow GoldA sparkling blue topaz and diamond half eternity ring that marries her favourite gemstone with the symbolic design of everlasting love on a 9ct yellow gold band. Gemstone Information Blue topaz boasts the colour of a bright summer sky and the ice like clarity of water. It has been said the Ancient Egyptians wore topaz as a protective talisman and was thought to be a gift from the sun god Ra. Topaz is one of the birthstones for November and may be