How We Evaluate Every Diamond: The FCD Invest Due Diligence Framework

In any market where significant capital is deployed, due diligence is not optional — it is the foundation upon which every sound investment decision is built. This principle remains the single most important discipline we bring to every diamond acquisition we evaluate.

The fancy color diamond market, for all its beauty and allure, is also a market where uninformed buyers can make expensive mistakes. Not every certified diamond is investment-grade. Not every dealer operates with the transparency and expertise that this asset class demands. At FCD Invest, we have built a due diligence framework that protects our clients.

It Begins with the GIA Report — But Doesn't End There

The Gemological Institute of America (GIA) report is the starting point for any serious diamond evaluation. A GIA certificate provides an objective, independent assessment of a diamond's key characteristics: color grade, clarity, carat weight, and cut. For fancy color diamonds, the color grade is paramount — the distinction between Fancy and Fancy Vivid, for example, can represent a multiple in value.

However, the GIA report, as essential as it is, represents the floor of our evaluation — not the ceiling. The Fancy Color Research Foundation (FCRF) has documented an important evolution in how the market values fancy color diamonds: increasingly, factors such as visual appeal, undertone, color dispersion, and face-up appearance are influencing pricing beyond what the GIA grade alone would predict. Two diamonds carrying the identical GIA grade can differ materially in visual impact and, consequently, in market value.

This is precisely why expertise matters. A GIA certificate tells you what a diamond is and is the starting point to verify that the diamond is natural, not lab-grown. Then, our evaluation process determines what it is worth — and whether it meets the threshold for inclusion in a client’s investment portfolio.

The Four Dimensions of FCD Invest's Evaluation

Every diamond that enters our pipeline is assessed across four critical dimensions:

1. Authenticity and GIA Grading Tier. We verify the authenticity of every GIA report and confirm that the diamond's grading falls within our target range for the relevant color category. Only diamonds graded Fancy Intense or above typically qualify for our investment-grade designation, though there are some Fancy Light exceptions if other conditions are met.

2. Visual Assessment — Inner-Grade Positioning, Undertone, and Face-Up Color. This is where expertise separates informed acquisition from speculation. We evaluate where a diamond sits within its grade — a strong Fancy Vivid presents differently from a borderline one. Undertone and color dispersion are assessed under controlled lighting conditions.

3. Market Comparables and FCRF Index Positioning. We benchmark every diamond against current FCRF index data and recent comparable sales. This ensures that the acquisition price reflects fair market value and positions our clients for optimal long-term performance.

4. Provenance and Chain of Custody. A diamond's history matters. We trace the chain of custody from origin through every prior transaction available, ensuring that the diamond's provenance is clean, documented, and fully transparent whenever possible. This protects the client and enhances future resale value.

Why 'Investment-Grade' Is Not a Marketing Phrase at FCD Invest — It's a Standard

The term 'investment-grade' is used loosely in many corners of the diamond market. At FCD Invest, it carries specific, enforceable meaning. A diamond earns our A-rated, investment-grade designation only after it has passed our four evaluation framework starting point.

The diamonds that make it through our initial process are then evaluated for rarity through specialized reports from third-party sources. If the diamond makes it through this phase, we submit the diamond to our team of appraisal experts for official valuation. Diamonds that meet the certification and reporting thresholds but fall short on visual assessment or market positioning are respectfully declined.

This discipline means that the majority of fancy color diamonds available in the broader market do not qualify for FCD Invest's portfolio. That is by design. Our clients — discerning investors building generational wealth — deserve nothing less than the most rigorously vetted assets available.

Storage, Ongoing Appraisal, and Chain of Custody

The due diligence process does not conclude at acquisition. FCD Invest arranges storage at Malca Amit premier secure facilities — the gold standard in luxury asset storage, providing state-of-the-art physical security, climate control, and comprehensive insurance coverage.

We also coordinate ongoing appraisals and maintain meticulous documentation that supports estate planning, insurance, and future liquidity events. Every diamond in our clients' portfolios is tracked, documented, and positioned for a seamless exit when the time is right.

This is what bespoke, white-glove service looks like in practice — privacy, discretion, and an unwavering commitment to protecting the assets that represent our clients' legacy.

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Please email FCD Invest at info@fcdinvest.diamonds to discuss your personalized long-term investment strategy. 

For more information on Fancy Color Diamonds as an investment, please visit our Fancy Color Diamond information page linked here.

Written by Rayah Levy, FCD Invest President

As President of FCD Invest, Rayah oversees strategy, client engagement, and the firm’s Due Diligence Division. She brings extensive experience in fancy color diamond and fine art investments, financial markets, transaction structuring, and institutional risk alignment, ensuring every engagement meets the standards of banks, investors, and counterparties.