About

Koblenz & Co. Antique & Estate Jewelry

Merle S. Koblenz, a third generation jeweler, grew up in her family’s jewelry business in Albany, NY, and has been buying and selling antique and estate jewelry since 1980 in her own business. See us on Pinterest and Facebook!


Video: Douglas Branson

Graduate Gemologist (1988) Gemological Institute of America
GIA Alumni Association – President of the award winning Manhattan Chapter (2001 – present)
2013 GIA Alumni Chapter Leadership Award
2012 GIA Alumni Chapter Leadership Award
2010 Winner – The International Alumni Achievement Award – GIA Alumni Association
2005 Volunteer of the Year – GIA Alumni Association
2002 Most Outstanding Chapter Member of the Year – GIA Alumni Association

Listed with the Jeweler’s Board of Trade
Senior Member – National Association of Jewelry Appraisers since 2003
Member – Association for the Study of Jewelry and Related Arts
Member – The American Society of Jewelry Historians
Accredited Senior Gemologist – Accredited Gemologists Association

Koblenz & Co. participates in many antique shows in the northeast US annually.

Most periods of jewelry are represented here and each item is carefully vetted for beauty, quality, and condition before entering the collection. Prices are based in reality as we subscribe to Auction Market Resource, The GemGuide, and others.


Koblenz & Co Antique & Estate Jewelry 31 North Main Street Kent, CT 06757   Phone: 860-927-0179