“Photo Masters for Diamond Grading” By Gary A. Roskin, 94 pp., illus., publ. by Gemworld International, Northbrook, IL, 1994. US$75.00 “A Sparkling Age, 17th Century Diamond Jewellery.” 223 pp., illus., pulbl. by the Diamantmuseum, Antwerp, Belgium, 1993, US$65.00 To view the full section, download the PDF above.
“Photo Masters for Diamond Grading” By Gary A. Roskin, 94 pp., illus., publ. by Gemworld International, Northbrook, IL, 1994. US$75.00 “A Sparkling Age, 17th Century Diamond Jewellery.” 223 pp., illus., pulbl. by the Diamantmuseum, Antwerp, Belgium, 1993, US$65.00 To view the full section, download the PDF above.
