Jewellery › Diamond Single-stone Ring Image 1 of 1 Diamond Single-stone Ring £0.00 The old mine-cut diamond weighing approx. 1.80cts, to the plain platinum hoopSize N ½Reference. SN7254 Add To Cart Added! The old mine-cut diamond weighing approx. 1.80cts, to the plain platinum hoopSize N ½Reference. SN7254 You Might Also Like Edwardian Sapphire and Diamond Cluster Ring Diamond and Sapphire Three-stone Ring Art Deco Style Ruby and Diamond Square Cluster Ring Antique Diamond Five-stone Carved Half-hoop Ring Victorian Sapphire and Diamond Three-stone Carved Half-hoop Ring