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DEVELOPMENTS AND HIGHLIGHTS AT THE GEMOLOGICAL INSTITUTE OF AMERICA'S LAB IN NEW YORK.CROWNINGSHIELD R.1974; AUSTRAL. GEMMOLOGIST; AUS; 1974, VOL. 12, NUM. 0004, P. 115 A 118Serial Issue

DEVELOPMENTS AND HIGHLIGHTS AT GIA'S LAB IN NEW YORKCROWNINGSHIELD R.1972; GEMS AND GEMOL.; U.S.A. ; 1972, VOL. 14, NUM. 0003, P. 82 A 86Serial Issue

DEVELOPMENTS AND HIGHLIGHTS AT GIA'S LAB IN NEW YORK.CROWNINGSHIELD R.1971; GEMS AND GEMOL; USA; 1971,1972, VOL. 13, NUM. 0012, P. 370 A 381Miscellaneous

DEVELOPMENTS AND HIGHLIGHTS AT GIA'S LAB IN NEW YORK.CROWNINGSHIELD R.1971; GEMS AND GEMOL; USA; 1971, VOL. 13, NUM. 0011, P. 344 A 353Miscellaneous

SEVERAL SIMPLE TESTS CAN IDENTIFY THE MAN-MADE DIAMONDS, SAYS GIA.CROWNINGSHIELD R.1970; AUSTRAL. GEMMOLOGIST; AUS; 1970(11), VOL. 10, NUM. 0012, P. 7 A 9Miscellaneous

DEVELOPMENTS AND HIGHLIGHTS AT GIA'S LAB IN NEW YORKCROWNINGSHIELD R.1972; GEMS AND GEMOL.; U.S.A.; 1972, VOL. 14, NUM. 0002, P. 50 A 57Serial Issue

GENERAL ELECTRIC'S CUTTABLE SYNTHETIC DIAMONDS (INCLUDING A FIRST REPORT OF THE EXAMINATION OF FACETED STONES).CROWNINGSHIELD R.1971; GEMS AND GEMOL; USA; 1971, VOL. 13, NUM. 0010, P. 302 A 314Miscellaneous

THE HEAT AND DIFFUSION TREATMENT OF NATURAL AND SYNTHETIC SAPPHIRES = LE TRAITEMENT THERMIQUE ET PAR DIFFUSION DES SAPHIRS NATURELS ET SYNTHETIQUESCROWNINGSHIELD R; NASSAU K.1981; J. GEMMOL. PROC. GEMMOL. ASSOC. G.B.; ISSN 0022-1252; GBR; DA. 1981; VOL. 17; NO 8; PP. 528-541; 1 TAB. ; ILL./TABL.Article

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