Definition of "gemology" [gemology]

• The study of gems. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And then they sent me to the GIA in Santa Monica for a Gemological Institute of America for diamond school and then to Zales Corporation in Dallas for gemology."
• "He educated himself, reading voraciously on gemology, on art history and technique."
• "It is better to consult an expert in astrology and gemology to know whether the gem is suitable and of good quality."