{"product_id":"vintage-1950s-cobalt-blue-gold-tone-rhinestone-graduated-riviere-collar-necklace","title":"Vintage Style Cobalt Blue Gold-Tone Rhinestone Graduated Riviere Collar Necklace","description":"\u003cp\u003eGraduated rhinestone rivières from the 1950s are one of the cleanest costume jewellery forms — and this one has held up very well.\u003c\/p\u003e\n\u003cp\u003eA mid-century collar necklace in gold-tone metal set with round cobalt blue rhinestones, graduating from small at the back to larger stones at the centre front. The individual prong settings are a hallmark of 1950s quality construction, holding each stone at four points rather than the cheaper channel or glue-set methods that came later.\u003c\/p\u003e\n\u003cp\u003eThe spring ring clasp is original and functioning.\u003c\/p\u003e\n\u003cp\u003eThe stones sit close to the neck, so this works best with a round or V-neckline — it fills the collarbone area cleanly. The cobalt blue reads strongly against both pale and dark fabrics. Not a layering piece; designed to be worn alone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Necklace\u003c\/li\u003e\n\u003cli\u003eEra: 1950s\u003c\/li\u003e\n\u003cli\u003eMaterial: Gold-tone metal\u003c\/li\u003e\n\u003cli\u003eStones: Cobalt blue rhinestones, prong-set, graduated\u003c\/li\u003e\n\u003cli\u003eSize: Approx. 40 cm length (full chain)\u003c\/li\u003e\n\u003cli\u003eMarked: No\u003c\/li\u003e\n\u003cli\u003eClosure: Spring ring clasp\u003c\/li\u003e\n\u003cli\u003eStyle: Rivière, geometric\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExcellent · All stones present and intact, clasp functions correctly, no visible damage to settings or plating.\u003c\/p\u003e","brand":"The Rare Room","offers":[{"title":"Default Title","offer_id":53966195065169,"sku":"RR-0339","price":10.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/6667\/9633\/files\/2026-06-03_15.53.19.jpg?v=1780690094","url":"https:\/\/therareroom.co.uk\/products\/vintage-1950s-cobalt-blue-gold-tone-rhinestone-graduated-riviere-collar-necklace","provider":"The Rare Room","version":"1.0","type":"link"}