{"product_id":"value-range-gold-testing-stone-62-x-38-x-12mm","title":"Gold Testing Stone 62 x 38 x 12mm","description":"\u003cp\u003e\u003cstrong\u003eGold Testing Stone\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA traditional method of testing the purity of precious metals, in particular gold\u003c\/li\u003e\n\u003cli\u003eConfirm karat markings and purity of gold by gently scrape jewellery item along the stone\u003c\/li\u003e\n\u003cli\u003eUse with an appropriate gold testing acid and apply directly to the stone\u003c\/li\u003e\n\u003cli\u003e Can also be used with test needles to confirm karat markings\u003c\/li\u003e\n\u003cli\u003eAlso works with silver and platinum when correct acid solutions are used\u003c\/li\u003e\n\u003cli\u003eStone measures 62 x 38 x 12mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Value Range","offers":[{"title":"Default Title","offer_id":59397372313934,"sku":"1435 1138A","price":2.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1718939332-64149100.jpg?v=1775920105","url":"https:\/\/maddisonsofdurham.co.uk\/products\/value-range-gold-testing-stone-62-x-38-x-12mm","provider":"Maddisons of Durham","version":"1.0","type":"link"}