Deborah A. Villepigue







Multi Award-Winning Jewelry Appraiser

Elite Credentials. Global Service.

When You Need Someone You Can Trust . . .

A qualified appraiser has years of experience and advanced certifications. Most jewelers are not qualified appraisers. Deborah Villepigue has multiple advanced certifications, including one of only six in the world as a Master Gemologist Appraiser. Rather than merely leaving you with a legal document like most qualified appraisers, we do our work right in front of you so you can fully understand the value of your asset and how to clean and take care of it to maximize its value long-term. We take pride in educating, protecting, and when necessary, advocating for our clients!

Deborah has been active in the jewelry industry since 1986. She started as a bench jeweler, but as she came to know the business, she realized that it was rife with misrepresentation and deceit. Aiming to bring honesty to all jewelry transactions, Deborah decided to help change the industry, both in the United States and abroad, by providing accurate, truthful information to buyers and sellers alike. In this capacity, she teaches clients how to sell, liquidate, and donate jewelry. Today, fewer than fifteen people in the world have her qualifications.

Why Choose The Jewelry Appraiser?

For 30+ years, The Jewelry Appraiser has been trusted by celebrities, media, courts, law enforcement, collectors, insurers, and personal property owners worldwide for her unmatched expertise and ethics. The jewelry industry unfortunately leaves a lot of room for customers to be taken advantage of. Deborah Villepigue has committed her life to advocating for truth, justice, and protecting her clients' peace of mind. The Jewelry Appraiser is the only independently owned, certified, and accredited gem lab in New York state.


The Jewelry Appraiser is a fully certified, independent gemology lab delivering expert appraisals, color grading and confirming GIA certifications. We specialize in jewelry appraisals, estate jewelry, engagement rings, gold jewelry, watches, gems, silverware and diamond valuation. We proudly serve the needs of individuals, businesses and the courts globally. From priceless heirlooms to exotic one-of-a-kind pieces, The Jewelry Appraiser will help you protect your investment with accredited and accurate jewelry appraisals for your jewelry valuation and insurance needs.

When needed, we travel globally, particularly the Far East, the Middle East, Africa, and India, to appraise gems and jewelry for both buyers and sellers. Deborah is especially proud of her activity in Africa, where she examines rough gemstones and rough diamonds and works to control trade in “conflict diamonds” (also known as “blood diamonds”).

Learn more about our services below or check out what sets The Jewelry Appraiser, Inc. apart here and view the full experience of Deborah Villepigue, GIA-GG, RMV, AGA, APPA, CGA, AGS-ICGA.


Are you shopping for high-end jewelry in New York? Our Manhasset location serves all of Long Island as well as the entire New York City metropolitan area. Before you buy, get an appraisal to make sure you know what you are buying. Deborah A. Villepigue GIA-GG, RMV, AGA, APPA, CGA, AGS-ICGA has assisted judges, celebrities, collectors and individuals in their diamond, jewel and gemological valuation needs. Whether you need an appraisal for insurance purposes, need help with the valuation of an estate or want to determine the true value of your jewelry, we will make the process simple for you.


The Jewelry Appraiser, Inc. appraisals are accepted by all courts, the US Government, the IRS, US Customs, Law Enforcement Agencies, major insurance companies, as well as by jewelers, auction houses nationwide and other businesses. Our appraisals are used to determine the identification and value for all jewelry (estate and modern) and metals (precious and base). Appraisal data files are maintained for a period of seven years. Our extensive library includes authoritative appraisal manuals and past and current price indexes, as well as reference books and trade periodicals.


Deborah A. Villepigue GIA-GG, RMV, AGA, APPA, CGA, AGS-ICGA is a member of the Jewelers Vigilance Committee (JVC), which helps to maintain honesty and integrity in the jewelry industry. We have a great passion for upholding the law in this industry. Various courts throughout New York have retained The Jewelry Appraiser Inc., on numerous occasions for expert witness testimony. Additionally, we work with district attorneys on the forensics of jewelry for the purpose of determining value for prosecution or defense, criminal matters and civil matters, such as state and federal inheritance tax basis.



Why Jewelry Appraisals Matter

How important is it to have your jewelry appraised? It is crucial to have a valid appraisal for your valuable jewelry.

If you are going to insure your jewelry you must have one.

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Certified Jewelry Appraisals For Insurance Purposes – Diamond Rings

What is a Jewelry Appraisal

An appraisal is a judgement of the value of a specific piece of jewelry on a specific date in a specific condition.

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Appraisals Should Be Done By a Qualified Appraiser

A good jeweler who has worked hard to earn the prestigious credentials as a graduate gemologist is still not by any means a jewelry appraiser or someone qualified to assess and/or purchase diamonds on your behalf.

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See why The Jewelry Appraiser’s exceptional care and expertise consistently earn 5-star reviews

Get In Touch

We have offices in NY, NJ, Pittsburgh and Philadelphia, PA, MD and globally in person or through virtual appraising.

Estate Appraiser

As New York's experienced and trusted multi-award winning jewelry appraiser, Deborah Villepigue is your partner for all kinds of appraisals, travel consulting, legal matters, or to verify authenticity of your asset

Get In Touch

For a faster response, please reach us by phone at 516-365-0888 or on WhatsApp at 516-413-4502. Otherwise, we’ll get back to you within 24 to 72 hours. Thank you!