{"product_id":"diamond-pearl-gauge-plastic-card","title":"Diamond \u0026 Pearl Gauge Plastic Card Type","description":"\u003cp\u003eThe Diamond \u0026amp; Pearl Gauge is a practical plastic card-style measuring tool designed for jewelers who need quick, accurate size and weight references for both diamonds and pearls. Compact and easy to keep at the bench, this combination gauge features clearly marked holes on both sides for fast identification without the need for a scale or loupe calculation.\u003c\/p\u003e\n\n\u003cp\u003eOne side displays diamond sizes ranging from \u003cstrong\u003e1\/64 ct to 6 carats\u003c\/strong\u003e and pearl sizes from \u003cstrong\u003e1\/2 to 40\u003c\/strong\u003e, allowing you to visually match stones and pearls by size in familiar units. Flip the card over, and the reverse side provides \u003cstrong\u003emetric carat weights\u003c\/strong\u003e for the diamond holes and \u003cstrong\u003emetric grain weights\u003c\/strong\u003e for the pearl holes, giving you a complete dual-reference tool in a single lightweight card.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCombination diamond and pearl gauge in a convenient plastic card format\u003c\/li\u003e\n  \u003cli\u003eDiamond size markings from 1\/64 ct to 6 carats\u003c\/li\u003e\n  \u003cli\u003ePearl size markings from 1\/2 to 40\u003c\/li\u003e\n  \u003cli\u003eReverse side displays metric carat weights for diamond holes\u003c\/li\u003e\n  \u003cli\u003eReverse side displays metric grain weights for pearl holes\u003c\/li\u003e\n  \u003cli\u003eCompact card design ideal for bench use or on-the-go reference\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\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eDiamond Range\u003c\/th\u003e\n\u003ctd\u003e1\/64 ct – 6 carats\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003ePearl Size Range\u003c\/th\u003e\n\u003ctd\u003e1\/2 – 40\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eReverse Side – Diamond\u003c\/th\u003e\n\u003ctd\u003eMetric carat weights\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eReverse Side – Pearl\u003c\/th\u003e\n\u003ctd\u003eMetric grain weights\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth\u003eFormat\u003c\/th\u003e\n\u003ctd\u003eCard type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43580686172374,"sku":"135.566","price":3.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/diamond-and-pearl-gauge-plastic-card-type-otto-frei.jpg?v=1719958036","url":"https:\/\/www.ottofrei.com\/products\/diamond-pearl-gauge-plastic-card","provider":"Otto Frei","version":"1.0","type":"link"}