Silver Turquoise Oblong Twist Ring. R001. This contemporary ring is part of our Heritage handmade jewellery collection and boasts an stunning oblong shaped cabochon of the finest Turquoise stone. Turquoise is the December birthstone The stone is set within a simple Sterling Silver frame and completed with a classic Sterling Silver band. All our Turquoise jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen turn the raw Turquoise stone into these stunning pieces of jewellery. You can find other matching Turquoise jewellery and other Turquoise rings on our website. Silver Turquoise Oblong Twist Ring. Turquoise Stone 8x5mm.