{"product_id":"vintage-blue-plastic-brooch-geometric-square-navy-white-1970s-costume-jewelry","title":"Vintage 1970s Blue Plastic Brooch Geometric Square Navy White Costume Jewelry","description":"\u003cp\u003eThe navy-and-white contrast on this piece is sharp enough to read from across a room.\u003c\/p\u003e\n\u003cp\u003eA small square brooch in dark navy blue plastic, with a white geometric motif on the front face: a ring of repeating cross-shaped units surrounding a central circle. The format is clean and graphic — the kind of bold, flat design that belonged to the 1970s–80s.\u003c\/p\u003e\n\u003cp\u003eAt 1.5 × 1.5 cm it sits flat and lightweight. The smooth plastic body has no surface texture — the decoration is entirely in that precise white-on-navy pattern.\u003c\/p\u003e\n\u003cp\u003eThe scale is compact enough for a lapel or collar, or pinned to a scarf or hat brim. It pairs naturally with navy, cream, or black — anything where a single graphic accent does the work of several pieces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Brooch\u003c\/li\u003e\n\u003cli\u003eEra: 1970s–1980s\u003c\/li\u003e\n\u003cli\u003eMaterial: Plastic\u003c\/li\u003e\n\u003cli\u003eSize: 1.5 × 1.5 cm\u003c\/li\u003e\n\u003cli\u003eWeight: 3 g\u003c\/li\u003e\n\u003cli\u003eMarked: No\u003c\/li\u003e\n\u003cli\u003eClosure: Pin-back clasp\u003c\/li\u003e\n\u003cli\u003eStyle: Geometric\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExcellent · No chips, scratches, or wear; pin mechanism intact and functional.\u003c\/p\u003e","brand":"The Rare Room","offers":[{"title":"Default Title","offer_id":53859855630673,"sku":"RR-0192","price":6.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/6667\/9633\/files\/20260525_193429.jpg?v=1779742446","url":"https:\/\/therareroom.co.uk\/products\/vintage-blue-plastic-brooch-geometric-square-navy-white-1970s-costume-jewelry","provider":"The Rare Room","version":"1.0","type":"link"}