{"product_id":"vintage-blue-john-sterling-silver-ring-signet-cabochon-oval-fluorite-bleu-jaune-womens-ladies-retro-oval-rare-gemstone-jewelry-jewellery-2","title":"Vintage Blue John Sterling Silver Ring Signet Cabochon Oval Fluorite Bleu Jaune Womens Ladies Retro Oval Rare Gemstone Jewelry Jewellery","description":"\u003cp\u003eDESCRIPTION: A lovely genuine vintage sterling silver and genuine blue john gemstone ring. Blue john is an extremely rare mineral and can only be found in Derbyshire in the UK, it is in fact Britain's rarest mineral. The ring sizes at approx. UK O.5 or US 7.5 and weighs approx. 1.97g. It's stamped \"SILVER\".\u003cbr\u003e\u003c\/p\u003e","brand":"Opulent Antiques","offers":[{"title":"Default Title","offer_id":56236479414537,"sku":"PS12714","price":31.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/6104\/7561\/files\/il_fullxfull.7286763767_pego.jpg?v=1759088374","url":"https:\/\/opulentantiquesstore.com\/products\/vintage-blue-john-sterling-silver-ring-signet-cabochon-oval-fluorite-bleu-jaune-womens-ladies-retro-oval-rare-gemstone-jewelry-jewellery-2","provider":"Opulent Antiques","version":"1.0","type":"link"}