Gem Pro Appraisal Services

Croton-on-Hudson, New York, USA

Avg. Rating Rating star5.0 (3 reviews)

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David Bidwell
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David has over twenty years of jewelry industry experience encompassing a diverse background including: Retail jewelry management and operations, gem and jewelry appraising, consulting, and gemological laboratory work.
David began his career in a family operated jewelry store where he spent many happy years advising clients in the purchase of custom design and estate jewelry, managed jewelry and watch repair services and conducted jewelry appraisal services. After earning the Graduate Gemologist Diploma (GG) and Insurance Replacement Appraisal Certificate from the Gemological Institute of America (GIA), David then moved on to the European Gemological Laboratory (EGL USA) in New York, serving as gemological and appraisal consultant from 2001 to 2008. He specialized in the appraisal of fancy color diamonds and rare unusual colored gemstones.

Now, David has established Gem Pro Appraisal Services, LLC an independent appraisal company, serving the needs of jewelry retailers, estate lawyers and consulting for some of the largest luxury online retailers in the United States. David has earned the title of Certified Senior Member with the National Association of Jewelry Appraisers (NAJA) placing him among the top jewelry appraisal professionals in the United States.

Please use the contact links at the top of this page to book an appointment or make further enquiries


The Business

  • Private Practice & Trade Valuer
  • Business mix: 100% appraisals
  • Principal + 0 staff Appraisers
  • Mon - Thur: 9am to 6pm
  • Mobile lab, via jewelers & at Appraiser's office


  • Per-item & time-based fees
  • All major cards accepted
  • Full appraisal reports start at $150


  • GG
  • CSM


  • GIA Alumni


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Gem Pro Appraisal Services
420 S. Riverside Ave #169
New York
NY 10520

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  • Free, close-by
  • Visitors by appointment only
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Reviews (3)
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All reviews have been verified. The Jewelry Appraiser has confirmed the validity of the report details provided by the Reviewer but did not see the Reviewers rating or review text during the validation process. This produces unbiased, reliable and genuine reviews.


avatarKenneth G. Westbury NY

Review starsJun 2018

Super Accurate

David did an appraisal on a collection of gold jewelry that we had, recommending what we should auction, sell for scrap, or sell on our own. We finally took the scrap pieces to a deader and received $100 more than David's estimate. Right on the mark, can’t get too much closer than that.

avatarBassboyblue. Croton-on-Hudson

Review starsOct 2017

eBay Jewelry Reseller

David was referred to me by a local jeweler who spoke very highly of him. I retained his services to consult on jewelry I had for resale. David is extremely professional, he came in prepared and gave me information that I needed to accurately represent and sell the items I had. I have used him since and will do so again; I consider him a trusted and invaluable resource.

avatarSandra C. Wappinger Falls

Review starsFeb 2017

Appraisal of my engagement & Wedding Rings

I recently hired Mr. David Bidwell to appraise both my diamond engagement and wedding rings. I live in Dutchess County and because Mr. Bidwell is mobile he was able to meet me at my home in Dutchess County.

Before hiring Mr. Bidwell I had reached out to a well-known jeweler in my area. I did not feel comfortable with this other appraiser who owned the jewelry store as it seemed he was trying to talk me into selling my jewelry to buy one of his diamond pieces. Since Mr. Bidwell is an independent appraiser Mr. Bidwell has no affiliation with any jewelry store and is 100% unbiased and neutral. I would highly recommend Mr. Bidwell to appraise your jewelry.