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A necklace of precious stones, generally set in one strand.
[French rivière (de diamants), river (of diamonds), from Old French rivere, from Vulgar Latin *rīpāria; see river.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Jewellery) a necklace of diamonds or other precious stones which gradually increase in size up to a large centre stone
[C19: from French: brook, river]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ri•vière(ˌrɪv iˈɛər, rɪˈvyɛər)
a necklace of diamonds or other gems.
[1875–80; < French: literally, river1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.