Definition of old–mine
: having a deep crown and cut in an obsolete style that gives it less sparkle than the modern brilliant —used of a diamond a Victorian diamond necklace with thirty-eight old-mine diamonds — New York Herald Tribune
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up old–mine? Please tell us where you read or heard it (including the quote, if possible).