December Birthstone Blue Topaz Sterling Silver Necklace The Vita Collection of Birthstones all with Genuine Gemstones are Designed by Amore Argento For every December born, this beautiful semi-precious blue topaz sings with bright colour and positive elements. Distinctive, eye-catching and glamorous, this birthstone promotes self-confidences, clarity of thought and learning of complex concepts. A classic round stone set in a 4 claw. Every piece of Amore Argento jewellery is perfectly presented in an attractive gift bag and box. Accompanied by the amore heart-shaped microfibre polishing cloth, this is the gift that will always be treasured. This necklace is 6.5mm diameter with a 4mm round blue topaz.