<http://schema.org/description>
"18ct (750\u00B0/oo) white gold ring set with a fine blue color and lozenge shape sapphire of approximately 1.75ct in prong setting within a double band frame of single-cut diamonds for a total weight  of approximately 0.10ct.\r\nRing size : 55 - N-1/2 (UK); 6-3/4 (US)\r\nGross weight : 6.15g (0.2oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<https://en.expertissim.com/our-works-of-art-and-antiques/jewellery/saphir>