{"product_id":"diamond-stone-gauge-kb","title":"Diamond \u0026 Stone Gauge-K\u0026B Diamond","description":"\u003cp\u003eThe K\u0026amp;B Diamond \u0026amp; Stone Gauge is a compact, professional-grade reference tool designed for bench jewelers who need quick, reliable measurements of loose and set stones as well as settings. Spanning a measurement range of .03 points to 4 carats, this pocket-sized gauge delivers versatile functionality in a slim aluminum body that fits easily in an apron pocket or bench tray.\u003c\/p\u003e\n\n\u003cp\u003eThe center dial rotates to align printed circles indicating both carat weight size and metric size, allowing for fast visual comparison without additional tools. Flip it over, and the reverse side features physical holes marked with the same carat weight and metric information — ideal for checking set stones by feel as well as by sight. A convenient birthstone chart is also printed on the reverse, making this gauge a practical quick-reference for customer consultations and custom work alike.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasures loose stones, set stones, and settings from .03 points to 4 carats\u003c\/li\u003e\n  \u003cli\u003eRotating center dial with printed circles showing carat weight and metric size\u003c\/li\u003e\n  \u003cli\u003eReverse side features physical measurement holes marked with carat weight and metric data\u003c\/li\u003e\n  \u003cli\u003eBirthstone chart printed on reverse side for quick reference\u003c\/li\u003e\n  \u003cli\u003eCompact aluminum construction for durability and portability\u003c\/li\u003e\n  \u003cli\u003ePocket-sized design suitable for bench or counter use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e90mm × 69mm (3‑1\/2\" × 2‑3\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMeasurement Range\u003c\/th\u003e\n\u003ctd\u003e.03 points – 4 carats\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eMeasurement Format\u003c\/th\u003e\n\u003ctd\u003eCarat weight and metric size\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eAdditional Reference\u003c\/th\u003e\n\u003ctd\u003eBirthstone chart (reverse side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580684271830,"sku":"135.562","price":10.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-and-stone-gauge-kandb-diamond-otto-frei.jpg?v=1719958036","url":"https:\/\/www.ottofrei.com\/products\/diamond-stone-gauge-kb","provider":"Otto Frei","version":"1.0","type":"link"}