Jewelry Expert Consulting & Valuation Services
Expert Witness & Litigation Support Available
Devine & Co. provides premier gem and jewelry valuation and consulting services catering to attorneys, estate planning professionals, insurance companies, law enforcement agencies, independent jewelers, and private clients, including high-net-worth and VIP clientele.
With over 20 years of industry experience, I deliver independent, well-supported opinions on authenticity, valuation, and construction, grounded in real-world market data and professional standards.
I specialize in consulting-based assignments and hypothetical valuation scenarios, offering clear, defensible analysis without the need for physical inspection when necessary.
Services include:
Jewelry authentication and quality analysis
Natural vs. lab-grown diamond determination
Evaluation of gemstone treatments and enhancements
Retail Replacement Value and Fair Market Value analysis
Review of prior appraisals and supporting documentation
Insurance claim support and valuation consulting
Reports for legal, insurance, dispute resolution purposes
Hypothetical appraisals based on limited or missing information
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Insurance & Field Experience
In addition to private appraisal work, I serve as a consulting gemologist for a national contents consulting firm, working remotely and traveling throughout the United States on complex insurance claims. This work includes on-site client interviews alongside investigators, inventory documentation and loss evaluation, and reconstruction of value based on incomplete or unavailable data. This experience provides a practical, real-world foundation in loss scenarios, fraud considerations, and market-based valuation.
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Jewelry Expert Witness Services
Devine & Co. provides jewelry expert witness services, including consulting, report preparation, and litigation support. Services are available to attorneys and legal professionals requiring independent analysis of jewelry-related matters. Support may include expert consultation, case review, valuation analysis, and rebuttal of prior reports. Testimony and deposition services are available when required but are not the primary focus of the practice.

Credentials
Gemological Institute of America – Graduate Gemologist, G.G.
National Association of Jewelry Appraisers – Certified Master Appraiser, NAJA
The Master Valuer Program – Registered Master Valuer, RMV
ACCREDITED GEMOLOGISTS ASSOCIATION (AGA) – ACCREDITED SENIOR GEMOLOGIST
American Society of Appraisers, ASA – Candidate
Uniform Standards of Professional Appraisal Practice, USPAP – Certified
International Gem Society (IGS) – Certified Professional Gemologist
Diamond Council of America – Certified Diamontologist
My work is rooted in industry-accepted methodology, combining gemological expertise with current market analysis. Valuations are supported by wholesale and retail data, with transparent explanation of assumptions and conclusions. Assignments are handled with discretion, objectivity, and efficiency. The majority of consulting work is completed remotely, with travel available when appropriate.
Based in Carmel-by-the-Sea, California, Devine & Co. provides services nationwide. Most consulting assignments are completed remotely, with travel available for select cases.
For consulting inquiries or case evaluation, please reach out to discuss scope and availability.