Authentication & Appraisal
At this level, trust must be grounded in verifiable evidence. Every diamond in our collection comes with comprehensive documentation exceeding industry standards — and we offer the same rigor as a standalone service.
Exceeding Industry Standards
Each diamond in our collection comes with comprehensive documentation that goes well beyond the industry norm. For collectors and investors operating at this level, documentation is not paperwork — it is the foundation of confidence, resale value, and long-term asset protection.
GIA Colored Diamond Grading Report
Full analysis including color grade, clarity, cut quality, and carat weight. GIA is the world's most respected gemological laboratory, and their reports are the global standard for diamond authentication and valuation.
Type Classification Verification
Spectroscopy and electrical conductivity testing confirming Type IIa or Type IIb classification where applicable. This testing is performed by specialized gemological laboratories and provides scientific certainty of a diamond's molecular identity and purity.
Detailed Provenance Documentation
Chain of custody from source to current ownership, ensuring ethical sourcing and legitimate origin. For diamonds with historic or notable provenance, we provide additional research and documentation.
High-Resolution Imaging and Video
Professional photography and videography showcasing the diamond's color, clarity, and light performance under various lighting conditions. This visual record serves as both a sales tool and a permanent identification reference.
Appraisal for Insurance Purposes
Professional valuation by independent gemological appraisers acceptable to all major insurance carriers. Updated appraisals available as market values change.
Lifetime Authenticity Guarantee
RARE.DIAMONDS guarantees the authenticity and accurate representation of every diamond sold, with full refund rights if any misrepresentation is discovered at any point in the future.
Kimberley Process Certification
All diamonds are sourced through Kimberley Process certified channels, ensuring conflict-free origins. Ethical sourcing is non-negotiable.
Six-Step Authentication
Every diamond that enters our collection passes through a rigorous six-step verification process before it is presented to a client:
- Independent GIA certification review — We verify the report is genuine, current, and accurately represents the stone
- Type classification confirmation — Spectroscopy testing confirms Type IIa or Type IIb designation where applicable
- Physical inspection by Brian Gavin — Hands-on evaluation of color, cut performance, and overall beauty under professional conditions
- Cross-reference with industry databases — Verification against stolen stone registries and industry records
- Documentation review for completeness — Ensuring all provenance, certification, and imaging meet our standards
- Final quality control before client presentation — Last inspection confirming the stone meets every criteria before it reaches you
Professional Verification
Whether you've inherited diamonds, purchased from another source, or need verification before a significant acquisition, we provide comprehensive authentication services:
- Verification of natural vs. synthetic origin — Advanced testing to confirm your diamond is a natural geological specimen, not laboratory-grown
- Color enhancement and treatment detection — Identification of HPHT treatment, irradiation, coating, or other color modifications
- Certification validation — Verifying that GIA or other laboratory reports are legitimate, current, and accurately represent the stone
- Quality assessment and grading confirmation — Independent evaluation of color, clarity, cut, and carat weight against the certified grades
Valuation for Every Purpose
Accurate, defensible valuations for insurance, estate planning, and transactions:
- Insurance replacement valuations — Appraisals acceptable to all major insurance carriers, reflecting current replacement cost
- Estate planning and tax purposes — Fair market value determinations for estate settlements, gifting, and tax reporting
- Fair market value determinations — Current market value based on auction results, dealer networks, and recent comparable sales
- Damage assessment for insurance claims — Professional evaluation of damage and diminished value for insurance recovery
Scientific Classification Testing
Diamond Type classification — IIa, IIb, Ia, or Ib — reveals a diamond's molecular identity and can add 15-25% or more to its value. We provide:
- Type IIa and Type IIb identification — Confirming the chemically purest diamond classifications through FTIR spectroscopy
- Advanced gemological testing — Access to specialized laboratory equipment for definitive classification
- Scientific documentation for rare specimens — Comprehensive reports suitable for collectors, insurers, and future resale
Type verification is particularly valuable for colorless diamonds (where Type IIa commands premiums), blue diamonds (all natural blues are Type IIb), and pink diamonds (many exceptional pinks are Type IIa).
Before You Commit
Considering a significant diamond purchase from another source? We offer independent evaluation so you can buy with confidence:
- Evaluation of diamonds you're considering purchasing — Independent assessment of quality, beauty, and whether the stone meets the represented specifications
- Market value analysis and pricing fairness assessment — Is the asking price fair relative to current market conditions and comparable recent sales?
- Quality verification before finalizing transactions — Confirmation that the diamond matches its documentation and meets investment-grade standards
A second opinion on a significant purchase is not distrust — it is diligence. We encourage it regardless of whether you ultimately buy from us.
"At this level, trust must be grounded in verifiable evidence, not salesmanship. Every claim we make about a diamond can be independently confirmed through scientific testing and documentation."— Brian Gavin, Fifth-Generation Diamantaire
Transparent Service Pricing
- Authentication: Consultation fee per diamond depending on complexity
- Recutting consultation: Fee per diamond depending on complexity
- Rush service available: 48-hour turnaround when needed
- Complimentary for RARE.DIAMONDS clients: Authentication and appraisal services are included at no additional charge for diamonds purchased through us
Contact us for a specific quote based on your requirements. We are transparent about fees before any work begins.
Request Authentication or Appraisal
Whether you need verification of a diamond you own, a second opinion on a potential purchase, or updated appraisals for insurance, we are here to help.
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