{"product_id":"antique-art-deco-18ct-gold-platinum-opal-diamond-ring","title":"Antique Art Deco 18ct Gold \u0026 Platinum Opal Diamond Ring","description":"\u003cp\u003eAn elegant antique ring crafted in 18ct gold and platinum, centred with an oval opal displaying a soft play of colour. The opal is encircled by European cut diamonds, all set within a platinum mount that enhances their brilliance and contrast against the gold band.\u003c\/p\u003e\n\n\u003cp\u003eDating to c.1920, the ring is marked ‘18ct \u0026amp; PLAT’, confirming its quality materials and period craftsmanship. Preserved in very good condition, it remains a refined example of early 20th-century jewellery design.\u003c\/p\u003e\n\n\u003cp\u003eEra:\u003cbr\u003e\nArt Deco, c.1920\u003c\/p\u003e\n\n\u003cp\u003eHallmarks:\u003cbr\u003e\nStamped '18ct \u0026amp; PLAT\" for 18ct gold and platinum. Makers mark 'B \u0026amp; K'\u003c\/p\u003e\n\n\u003cp\u003eDimensions:\u003cbr\u003e\nRing size K. US 5.\u003cbr\u003e\nOpal 5.8mm x 4mm\u003cbr\u003e\nFace 10mm x 8mm\u003cbr\u003e\nBand width 2mm\u003c\/p\u003e\n\n\u003cp\u003eWeight:\u003cbr\u003e\n2.3 grams\u003c\/p\u003e","brand":"thenorthc","offers":[{"title":"Default Title","offer_id":56518617235836,"sku":"CN1217","price":850.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/3423\/1615\/files\/il_fullxfull.7802561264_15c6.jpg?v=1774026434","url":"https:\/\/thenorthc.co.uk\/products\/antique-art-deco-18ct-gold-platinum-opal-diamond-ring","provider":"thenorthc","version":"1.0","type":"link"}