{"product_id":"blue-john-ring-7","title":"1970s Vintage 9ct Gold Blue John Ring","description":"\u003cp data-start=\"107\" data-end=\"488\"\u003eA fabulous 1970s 9ct gold Blue John ring. This gorgeous vintage piece features a large oval Blue John cabochon in a smooth bezel setting, showcasing the remarkable natural banding that makes this gemstone so sought after, with swirls of rich purples, lilacs, creams and warm browns running through the stone. Blue John is a rare variety of fluorite found only in Derbyshire, England, making it one of Britain's most distinctive gemstones, making this a wonderful choice for lovers of British jewellery, Blue John collectors, or anyone looking for a unique and rare statement ring.\u003c\/p\u003e\n\u003ch3 data-section-id=\"86qg72\" data-start=\"992\" data-end=\"1004\"\u003eDetails:\u003c\/h3\u003e\n\u003cp data-start=\"1005\" data-end=\"1505\"\u003e• Metal: 9ct yellow gold\u003cbr data-start=\"1029\" data-end=\"1032\"\u003e• Gemstone: Blue John (fluorite)\u003cbr data-start=\"1075\" data-end=\"1078\"\u003e• Gemstone size: Approx. 15mm x 9mm\u003cbr data-start=\"1113\" data-end=\"1116\"\u003e• Design: Solitaire \/ bezel-set ring\u003cbr data-start=\"1152\" data-end=\"1155\"\u003e• Size: UK size J (US size 4 3\/4)\u003cbr data-start=\"1188\" data-end=\"1191\"\u003e• Weight: Approx. 2.8 grams\u003cbr data-start=\"1218\" data-end=\"1221\"\u003e• Hallmarks: Birmingham Assay Office\u003cbr data-start=\"1257\" data-end=\"1260\"\u003e• Maker's Mark: JRT\u003cbr data-start=\"1279\" data-end=\"1282\"\u003e• Era: 1970s (date letter for 1979)\u003cbr data-start=\"1317\" data-end=\"1320\"\u003e• Condition: Generally good vintage condition. Some light surface scratches to the stone consistent with age and wear. Stone is secure and the ring remains very wearable.\u003c\/p\u003e\n\u003cp data-start=\"1507\" data-end=\"1628\"\u003eA complimentary ring box will be provided, ensuring this beautiful vintage ring arrives ready for gifting or safekeeping.\u003c\/p\u003e","brand":"Second Sparkle","offers":[{"title":"Default Title","offer_id":57916558147848,"sku":"2047","price":320.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/2308\/6344\/files\/DSC_0179_ee99c8b5-5612-49ab-bfe3-cf55928912a7.jpg?v=1780422611","url":"https:\/\/secondsparkle.co.uk\/products\/blue-john-ring-7","provider":"Second Sparkle","version":"1.0","type":"link"}