Synthetic gems, the case for caution
By: by M.J. O'Donoghue.
Series: Special reports / Worshipful Company of Goldsmiths. Technical Advisory Committee -- no.30; Special reports (Worshipful Company of Goldsmiths. Technical Advisory Committee) -- no.30.
Publisher: Worshipful Company of Goldsmiths
Published: 1976
Place of publication: London (Director of Research, Central House, Whitechapel High St., E1 7PF)
Language: eng
Number of pages: 10
Subjects: Precious stones, Artificial.