{"product_id":"premium-dark-round-natural-test-stone-for-silver-gold-jewellery-scratch-acid-testing-heavy-duty-pawn-quality","title":"Premium Dark Round Natural Test Stone for Silver Gold Jewellery, Scratch Acid Testing, Heavy Duty Pawn Quality","description":"\u003cp\u003eFor jewellers, pawnbrokers, and assayers who need a reliable surface for acid testing precious metals. This natural test stone provides a consistent, high-contrast background for accurately assessing the fineness of gold and silver streaks. All our jewellery tools are UK-stocked for fast dispatch.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNatural dark stone provides excellent colour contrast for gold and silver streaks.\u003c\/li\u003e\n\u003cli\u003eFeatures a fine-grained, matte surface that takes a clear metal streak without damage.\u003c\/li\u003e\n\u003cli\u003eSmooth, rounded pebble-like shape is comfortable to hold and manipulate during testing.\u003c\/li\u003e\n\u003cli\u003eAllows for accurate, non-destructive testing of jewellery and other precious metal items.\u003c\/li\u003e\n\u003cli\u003eA durable, heavy-duty tool suitable for daily use in a workshop or at a trade counter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eAn essential bench tool for UK jewellers, assayers, pawnbrokers, and precious metal dealers who need to quickly verify the carat of gold and fineness of silver whilst assessing items.\u003c\/p\u003e\n\u003cp class=\"ts-trust\"\u003e\u003cstrong\u003eFree UK delivery\u003c\/strong\u003e · \u003cstrong\u003eSame-day dispatch\u003c\/strong\u003e before 2pm · \u003cstrong\u003e30-day returns\u003c\/strong\u003e\u003c\/p\u003e\n\u003cspan data-toolsmith-sku-index style=\"position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden\" aria-hidden=\"true\"\u003eSKU: 9Y-5ZL0-NLT6\u003c\/span\u003e\n\n\u003c!-- TS:RELATED-GUIDES v1 --\u003e\n\u003cdiv class=\"ts-related-guides\" style=\"margin-top:2em;padding:1em;border-top:1px solid #e0d4c0;\"\u003e\n\u003ch3 style=\"margin:0 0 .5em 0;font-size:1.1em;\"\u003eRelated buying guides\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:1.2em;\"\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/setting-up-a-jewellery-bench-uk-essentials\"\u003eSetting Up a Jewellery Bench: 12 Essentials UK Bench Jewellers Actually Use\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/jewellers-saw-frames-and-blades-uk-guide\"\u003eJeweller's Saw Frames and Blades: Pick the Right Combo\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/uk-hallmarking-guide-jewellery-makers-2026\"\u003eUK Hallmarking Guide for Jewellery Makers (2026)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/collections\/jewellery-making-tools\"\u003eBrowse all Jewellery Making Tools\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Toolsmith Ltd","offers":[{"title":"Default Title","offer_id":53138581815639,"sku":"9Y-5ZL0-NLT6","price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/1623\/3559\/files\/toolsmith-rebg-premium-dark-round-natural-test-stone-for-silver-gold-jewell-1777629484.jpg?v=1777629491","url":"https:\/\/www.toolsmithltd.co.uk\/products\/premium-dark-round-natural-test-stone-for-silver-gold-jewellery-scratch-acid-testing-heavy-duty-pawn-quality","provider":"Toolsmith Ltd","version":"1.0","type":"link"}