<http://schema.org/description>
"18ct (750\u00B0/oo) white gold ring set with a square-cut emerald of approximately 6.21cts and three small single-cut diamonds (one missing diamond).\r\nRing size : 53 - M-1/2 (UK); 6-1/4 (US)\r\nGross weight : 5.3g (0.17oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<https://en.expertissim.com/our-works-of-art-and-antiques/jewellery/grey-gold>