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Diamond Cutting & Grading

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Gems & Gemology: The Quarterly Journal of the Gemological Institute of America.

 

G&G Article Index: Diamond Cutting & Grading

  • Summer 1936, The New Line-Cut Diamond, p. 43, 2pp.
  • Winter 1936, The New Diamond Cuts Break Easier than Thicker Old Cuts, p. 68, 1p.
  • Winter 1936, Notes on Diamond Grading (Clarity and Color), p. 77, 2pp.
  • Summer 1937, Gauges for Diamond Proportions, p. 109, 3pp.
  • Fall 1937, New Diamond Grading Equipment (Microscopes), p. 114, 5pp.
  • Summer 1939, Increased Demand for Spready Diamonds, p. 24, 1p.
  • Fall 1940, Diamond Color Gauge, p. 105, 1p.
  • Spring 1942, Evaluating Diamond Make, p. 2, 5pp.
  • Spring 1943, Girdle-Faceted Diamonds, p. 71, 1p.
  • Winter 1944, More Patents on Modifications of the Brilliant Diamond, p. 184, 1p.
  • Spring 1945, New and Old Novelty Styles of Brilliant Cutting, by Shipley, p. 194, 7pp.
  • Fall 1945, Diamond Cutting By the Electric Arc Method, p. 263, 5pp.
  • Winter 1945, The Diamondscope, p. 285, 4pp.
  • Spring 1946, p. 313, 2pp.
  • Summer 1946, The Leveridge Gauge and Weight Estimation, p. 324, 2pp.
  • Summer 1947, The New Standard Diamondlite, p. 431, 1p.
  • Winter 1947, Estimating Weights of Recut Diamonds with the Leveridge Gauge, p. 486, 4pp.
  • Winter 1948, New Classification of Rough Diamonds by De Beers Co., p. 120, 2pp.
  • Spring 1950, Diamond Jewelry Through the Ages, p. 267, 11pp.
  • Winter 1953, Procedures for Cutting and Grading Diamond, by G. Kaplan, p. 355, 7pp.
  • Summer 1956, Modern Diamond Cutting Tools, p. 310, 10pp.
  • Spring 1958, Electronic Colorimeter for Diamonds, by Shipley, p. 136, 9pp.
  • Summer 1958, Clarity in Diamonds, p. 174, 7pp.
  • Spring 1959, A Large Rose Diamond, 13 1/2 mm x l l/2 mm, p. 266, 1p.
  • Fall 1959, Another Large Rose Diamond, 15mm x 2.1mm, p. 336, 1p.
  • Winter 1961, The New Princess Cut, p. 250, 1p.
  • Fall 1962, Rapid Sight Estimates of Diamond Cutting Quality, by Liddicoat, p. 323, 13pp.
  • Winter 1962, p. 365, 11pp.
  • Fall 1962, The 20th Century Cut, p. 340, 1p.
  • Winter 1963, Estimating Diamond Weight Before and After Recutting, p. 118, 3pp.
  • Winter 1965, A Diamond with 122 Facets, p. 360, 2pp., (See also Winter 1966, p. 112, 2pp.)
  • Spring 1967, Diamond Proportion Grading and the New Proportionscope (Pictured on Back Cover), p. 130, 7pp.
  • Spring 1968, The Optics of Brilliant Cut Diamonds, p. 263, 9pp.
  • Fall 1968, A Large Rose Cut Diamond Fraudulently Set in Closed-Back Setting to Imitate Larger Stone, p. 350, 2pp.
  • Fall 1969, Modern Rose Cut Diamonds, p. 90, 2pp.
  • Winter 1969, Polished or Unpolished Girdles (?), p. 120, 2pp.
  • Spring 1970, Polished or unpolished girdles, p. 161, 1p.
  • Fall 1970, Diamond Polished Nearly Parallel to Cleavage (Grain), p. 230, 2pp.
  • Fall 1971, A 20th Century Cut Diamond, p. 345, 1p.
  • Winter 1971, The Barion Cut, a New Standard Mixed Cut for Diamonds, p. 366, 4pp.
  • Winter 1971, Double Girdles to Eliminate Bearding, p. 372, 3pp.
  • Winter 1971, A Huge Pear-Shape Rose Cut Diamond (Foil Backing to Imitate Pavilion), p. 375, 2pp.
  • Spring 1974, The 144 Facet Diamond is 32% More Brilliant than the 58-Facet Diamond, p. 259, 12pp.
  • Spring 1974, (the GIA Rebuttal to Above), p. 271, 2pp.
  • Spring 1974, (the 144-Facet Diamond is Less Brilliant Than the 58-Facet Diamond), p. 273, 11pp.
  • Fall 1974, A Very Thin and Deep Laser Hole, p. 347, 2pp.
  • Summer 1975, Twinning Plane Causes Polishing Problems, p. 46, 1p.
  • Fall 1975, Faceting Limits (Diamonds and Colored Stones), p. 78, 10pp.
  • Winter 1976, The Various Effects of Faceted Gems, p. 98, 15pp.
  • Fall 1977, The New “Radiant-Cut”, p. 332, 2pp.