Silver Turquoise Marcasite Domed Oval Beaded Edge Ring. R822. This feminine ring boasts a striking domed oval cabochon of the finest Turquoise semi precious gemstone. The stone is placed within an exquisite Sterling Silver scalloped edge setting with Marcasite stones for added sparkle and is completed with a classic Sterling Silver band. All our Turquoise jewellery is designed and crafted within our very own workshops in Derbyshire where a team of skilled craftsmen turn the raw Turquoise into these stunning pieces of jewellery. You can find other matching Turquoise jewellery and other Turquoise rings online and instore. Silver Turquoise Marcasite Domed Oval Beaded Edge Ring. Dimensions: Turquoise - 7x5mm, Face of ring 12x10mm.