Frequently Asked Questions
What clients usually ask first
Why natural diamonds?
For rarity, authenticity, and enduring appeal.
Why invest in diamonds?
For value preservation and portfolio diversification.
How do certification and authenticity work?
Through trusted certification and transparent verification.
How do purchase and delivery work?
With a simple process, secure handling, and insured delivery.
Value and Market
Diamonds offer distinctive advantages over gold and real estate: extreme value concentration in minimal volume (easy to store, transport, and liquidate globally), chemical and physical indestructibility (10/10 Mohs hardness, doesn’t oxidize or degrade), and steady demand from emerging markets like Asia and the Middle East sustaining long-term value. Unlike gold, more prone to macroeconomic and speculative volatility, certified diamonds maintain privacy and discretion in transactions, ideal for portfolio diversification. Compared to real estate, they eliminate maintenance costs, local market/regulatory/disaster risks, and liquidity constraints, enabling worldwide cash conversion.
Diamonds, like gold and all assets, experience market cycles with possible temporary declines. However, given their permanent nature – personal enjoyment in jewelry, long-term wealth consolidation, or generational transfer – short-term value concerns are irrelevant. Natural investment-grade diamonds, bought through certified reputable channels (not fly-by-night sellers), preserve real value against inflation with the security of owning a tangible physical asset, not just paper or digital bits.
The ideal investment amount in diamonds depends on risk profile, goals, and portfolio diversification, but typically starts from $5,000-10,000 for certified medium-quality stones (4Cs: carats, color, cut, clarity) with good long-term appreciation potential. Budgets under $5,000 limit returns for small investors; over $10,000 (e.g., multiple 1-3 carat stones) optimizes liquidity and appreciation while avoiding single large diamonds that take longer to resell. Many investors allocate 15-20% of their total portfolio to diamonds as an alternative safe-haven alongside gold or stocks to balance volatility.
Yes, you can start with modest budgets buying certified investment-grade diamonds from about $1,000 in our Flowant selection, or purchasing from the site’s open section maintaining Rapaport-aligned quality/price: better a single GIA/IGI/HRD certified stone guaranteed by IDC than impulsive low-quality buys. Our Diamond Saving Plan (DSP) also allows gradual accumulation with fixed monthly payments, if you want to start a more important diamond with a small budget.
Yes, gradual diamond purchasing is a common and flexible strategy suited to various goals. You can buy whole diamonds regularly selecting each optimal stone based on market conditions, or join our Diamond Saving Plan (DSP) for structured purchases with fixed monthly/quarterly payments that automatically build a diversified portfolio across cut, color, and clarity. This approach works well for spreading liquidity over multiple years without large immediate commitments, while still capturing long-term value appreciation.
Yes, the current window is optimal for buying natural diamonds: at present synthetics have driven prices downward, creating a unique opportunity. However, given the non-speculative market nature, factors like Rapaport off or USD rates only affect short-term views. Investment-grade diamonds have centuries of history: we can state with absolute confidence they are always an excellent patrimonial acquisition when viewed with the right long-term perspective.
To buy diamonds safely, rely on specialized dealers with certified gemologists (GIA, IGI, HRD) and access to official exchanges and Rapaport listings, verifying authorizations and price transparency. Avoid generic jewelers or non-specialized platforms: choose operators experienced in investment-grade diamonds with transparent certificate and payment policies. The right price is assessed using the Rapaport list (4Cs as baseline), influenced by cut and fluorescence quality. Request detailed reports and multiple quotes for confirmation. IDC provides all these guarantees: as brokers, we secure the best price for you without pushing one diamond over another.
Market Price: Maximize invested capital – tax-free purchase with custody in fully tax-exempt jurisdictions or tax-suspended, ideal for pure allocation or first step, while retaining future redemption option with tax payment.
Private Price: Total simplicity – taxes included, diamond immediately yours with delivery or optional storage, perfect for private long-term ownership.
With IDC, choose the fiscal model optimizing your specific wealth strategy.
The Rapaport is the weekly benchmark price list for natural diamonds with base $/carat prices by 4Cs. The ‘off’ (discount/back) is the common discount for standard diamonds, due to factors like cut quality, proportions, symmetry, fluorescence, or demand. Premium is rare for exceptional diamonds (Ideal cut, zero fluorescence, Hearts&Arrows), or for carat weights approaching the next size threshold (pricing uses weight brackets: a 1.40 ct diamond will likely command a premium over a 1.00 ct with identical specs, as the base quote for that bracket spans 1.00-1.49 ct). Check the certificate and consult IDC brokers for true value.
Yes, if you choose certified conflict-free natural diamonds via Kimberley Process. IDC offers only natural diamonds with GIA/IGI/HRD certificates confirming authenticity/quality + KP for clean supply chain and ethical sourcing from responsible mines (no conflicts, verified labor conditions), supporting local economies without “blood diamonds”. Ethical investing rewards: rising demand for traceability (value premium) and clear conscience.
Think tap water (Synthetic) vs natural mineral water: both hydrate, but only Alpine spring water has unique origin, minerals and value. Same for natural diamonds (billions of years in Earth’s mantle, 150km depth) with geological inclusions certifying ancient history. Synthetics (lab HPHT/CVD, 2-8 weeks) are worth their electricity production cost (1ct D-IF: natural average $12,000-18,000 vs synthetic $200-600), resetting on secondary market since unlimited supply is possible. This, in our view, is the real reason many brands switched to synthetics, hiding behind ethical claims. IDC offers only GIA/IGI/HRD certified naturals.
Product and Consulting
No, investment diamonds differ enormously by 4Cs quality (carat-color-clarity-cut), GIA-IGI-HRD certifications, polish and symmetry quality, fluorescence. Each diamond must be evaluated as a whole with price aligned to real quotes. IDC facilitated selection guarantee alignment with real Rapaport quotes. Plus, rarer diamonds have higher chances of appreciation and profitable resale.
No “perfect diamond” exists, but IDC selects based on budget and goals. Our selections are pre-optimized:
Flowant: Single certified investment-grade diamonds (0.5-1.5ct+), perfect for scalable entry with guaranteed Rapaport quality/price.
Fusion: Multi-diamond mixed packages (like a closed-end fund), for instant diversification and larger allocations.
We assess together your wealth goals to select Flowant (focused), Fusion (diversified), or custom solution.
On our site you can buy confidently directly: same guarantees and services. Contact an IDC advisor only for specific doubts or personalized strategy advice – not a security issue, but tailored support. Contact and support are free.
After first contact, you immediately receive:
Profile analysis (budget, time horizon, goals)
Personalized proposal Flowant/Fusion/custom with GIA/IGI/HRD certificates
Rapaport-aligned quote with transparent % off or premium
Market Price (tax-free) vs Private Price (tax included)
Then choose: direct site purchase (full guarantees) or advisor deep-dive.
Rarity is primarily assessed by intrinsic characteristics: Carat-Color-Clarity-Fluorescence and origin. Cut influences secondarily as light optimization through human craftsmanship with high risk, existing only in non-replicable natural diamonds. Rarer natural raw materials = higher appreciation potential.
Carats measure diamond weight: 1 carat = 0.2 grams = 200 mg, divisible into 100 points (1 point = 2 mg).
Price per carat is used because it’s the only scalable variable once Color-Clarity-Fluorescence category is defined.
Price per carat is non-linear, exponential:
1ct D/IF = 6x a 0.5ct D/IF
10ct D/IF = ~100x a 1ct D/IF
Gemological certificate (GIA, HRD, IGI) proves authenticity (natural origin + precise 4Cs: Carat, Color, Clarity, Fluorescence) but not monetary value. It’s the objective ID card, verifiable via unique number.
Monetary value calculated applying Rapaport Diamond Report (NY weekly list) to certified 4Cs.
IDC protocol: Certifate + Rapaport with % off or premium= precise, liquidatable valuation.
No, the certificate doesn’t increase intrinsic value, but greatly enhances resale by providing objective basis for quotable characteristics (4Cs).
Uncertified diamonds need subjective expert appraisal with uncertainty/discounts. GIA/HRD/IGI certification creates standardized starting point, Rapaport-recognized for immediate, transparent transactions.
Protection, Delivery and Resale
IDC guarantees complete security when purchasing GIA/HRD/IGI certified diamonds in anti-counterfeit blister packs and/or laser-engraved with unique number(free online verification), insured delivery via specialized courier or insured storage, Kimberley Process compliance (100% conflict-free), secure payment, and complete traceability from mine to end customer, while always ensuring complete privacy and discretion.
IDC will never ask for cash payment or suggest paperwork to avoid taxes. We only provide legally compliant solutions, and that’s your guarantee.
Bank transfer, credit/debit cards, cryptocurrency.
Yes, total flexibility based on your needs. We offer both services with the highest level of security.
Secure Custody Service is ideal for:
Investment without physical possession need (future pickup always possible with tax payment) Tax optimization, saving VAT/customs on buy/sell, ideal for complex tax scenarios with high transport/duty costs Maximum discretion with diamond stored anonymously, ideal privacy Faster resale without logistics/shipping Diversified portfolio with “invisible” allocation without domestic risks/private insurance
IDC offers two secure delivery/storage options:
- Physical Delivery: Certified diamonds arrive in a counterfeit-proof blister and/or laser-engraved package, shipped via a specialized courier (such as Ferrari or Malca Amit) + fully insured (Rapaport market value) until they reach you.
- Secure Custody: Diamonds remain in a free-of-charge vault or tax-free location, yours immediately. Future collection possible or digital resale without logistics. 24/7 all-risk insurance coverage.
Depends on jurisdiction, but diamonds are among least taxed assets globally.
No capital gains on profits (many countries)
No wealth/inheritance tax (bearer asset)
Anonymity (no registries)-Portability (untraceable)
Tax deferral bonded storage
IDC market price for global optimization.
NO, no personal documents needed to own a private diamond (bearer asset).
Recommended for value/liquidity:
GIA/HRD/IGI certificate: “ID card” for 4Cs + natural authenticity (mandatory IDC platform resale);
Purchase invoice + sealed blister and/or laser inscription for traceability;
IDC standard: every diamond KPC + GIA/HRD/IGI, zero bureaucracy.
Resale is always possible through the IDC platform. All our GIA/HRD/IGI certified products are resold on the open market, but being a non-speculative market, timing and final prices may vary.
Two methods:
Market Price: simple listing for sale → wait for buyer → payment after sale complete;
Private Price: IDC handles merchandise checks + logistics + specialized personnel.
Note: resale may result in a loss vs purchase price. No guarantees on timing or amounts.
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