{"title":"Tools \u0026 Equipment\/Gemological Tools\/Gauges \u0026 Calipers \/Estimators","description":null,"products":[{"product_id":"51-854","title":"Diamond Estimation Scale Loupe 18mm Triplet 10x","description":"\u003cp\u003eThe New diamond estimation scale loupe by GEMS features a triplet 10x loupe with a 18mm diameter lens that has a built-in linear scale of (12mm\/6.5 ct.). In addition, it features a circumference scale for round diamonds (0.5–3.5mm in 0.5mm increments). The lens is European made and it's aplanatic and achromatic and has an anti reflection coating to minimize reflections.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42927970451651,"sku":"51-854","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-854a.jpg?v=1709309449"},{"product_id":"51-876","title":"Estimation Loupe with LED Light","description":"\u003cp\u003eThis loupe can be used to estimate the weight of a mounted gemstone or to measure the table, or facets, etc of the stone. The distance between measuring scale and the lens is adjustable so you can obtain a sharp image of the measuring scale imposed on the gemstone. The measuring scale ranges from 0 to +\/-15mm, in 0.1mm increments, so that gives you a full 30mm scale.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42927976612035,"sku":"51-876","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-876c.jpg?v=1709309513"},{"product_id":"51-868","title":"TOYO Estimation Loupe with LED Light \u0026 9 Scales","description":"\u003cp\u003eThis loupe can be used to estimate the weight of a mounted gemstone or to measure the table, or facets, etc of the stone. The distance between measuring scale and the lens is adjustable so you can obtain a sharp image of the measuring scale imposed on the gemstone. The measuring scale ranges from 0 to +\/-15mm, in 0.1mm increments, so that gives you a full 30mm scale.\u003c\/p\u003e\n\u003cp\u003eThis set also features 9 different reticle scales which help measure a variety of dimensions, such as: diameter, radius, angles, etc. This set comes packaged in a nice carrying case.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42927978840259,"sku":"51-868","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-876b_1.jpg?v=1709309550"},{"product_id":"diamond-millimeter-gaugehtml","title":"Diamond Millimeter Gauge","description":"\u003cp\u003eAluminum gauge for measuring diamonds from 0.03 carat to 4 carat. It also measures diameters from 2 to 11 mm.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42931199803587,"sku":"51-311","price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-311_1_Diamond-Millimeter-Gauge.jpg?v=1709518361"},{"product_id":"transparent-multi-shapehtml","title":"Transparent Multi-shape Gauge","description":"\u003cp\u003eA tool for measuring many shapes of diamonds, gemstone, etc. Made of clear plastic it enables you to get a more precise estimate of the weight of brilliant and single cut diamonds, as well as marquise, emerald cut, pear shape, square cut, straight and tapered baguettes in sizes ranging from 0.01 to 8 carat. Diameters are indicated in millimeter and carat size.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42931199869123,"sku":"51-314","price":4.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-314_1_Transparent-Multi-Shape-Gauge.jpg?v=1709518359"},{"product_id":"round-stone-size-estimatorhtml","title":"Round Stone Size Estimater","description":"\u003cp\u003eThese sales aids eliminate the risk when displaying expensive stones to show diamond sizes to your customers. Use these to demonstrate the actual size of a diamond as well as the different shapes that are available. The Sizes version has 10 brilliant cut round cubic zirconia ranging from 0.20 to 2.00 carats.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42931201507523,"sku":"51-380","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-380_1_Round-Stone-Size-Estimater.jpg?v=1709518386"},{"product_id":"diamond-shape-estimatorhtml","title":"Diamond Shapes","description":"\u003cp\u003eThese sales aids eliminate the risk when displaying expensive stones to show diamond sizes to your customers. Use these to demonstrate the actual size of a diamond as well as the different shapes that are available. The Shapes version has 7 cubic zirconia in all shapes.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42931202621635,"sku":"51-381","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-381_1_Diamond-Shapes.jpg?v=1709518404"},{"product_id":"51-856","title":"Estimation Loupe","description":"\u003cp\u003eThis loupe can be used to estimate the weight of a mounted gemstone or to measure the table, or facets, etc of the stone. The distance between measuring scale and the lens is adjustable so you can obtain a sharp image of the measuring scale imposed on the gemstone. The measuring scale ranges from 0 to 11 mm, in 0.1mm increments. Alongside the millimeter scale, there is corresponding approximate weights for round brilliant diamonds, eliminating the need to look up a separate chart for weight estimation.\u003c\/p\u003e","brand":"A\u0026A Jewelry Suppy","offers":[{"title":"Default Title","offer_id":42931202851011,"sku":"51-856","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0054\/6796\/3427\/files\/51-856-estimation-loupe.jpg?v=1709518408"}],"url":"https:\/\/aajewelry.com\/collections\/tools-equipment-gemological-tools-gauges-calipers-estimators.oembed","provider":"A\u0026A Jewelry Supply","version":"1.0","type":"link"}