<http://schema.org/description>
"18ct (750\u00B0/oo) white gold and platinum (950\u00B0/oo) ring set with three main old-mine cut diamonds and three smaller rose-cut diamonds.\r\n\r\nRing size : 52 - L-1/2 (UK); 5-7/8 (US)\r\nGross weight : 5.19g  (0.17oz)\r\n\r\nDimensions of the stones :\r\n- approx. 4.6 x 4.5 x 4mm\r\n- approx. 4.7 x 4.6 x 3mm\r\n- approx 4.2 x 4.6 x3.2mm\r\n\r\nSupposed colours : H/I, one stone tending to J\r\nSupposed clarities : SI"^^<http://www.w3.org/2001/XMLSchema#string>
<https://en.expertissim.com/our-works-of-art-and-antiques/jewellery/grey-gold>