How an investment in natural diamonds must be understood
Natural diamonds have always held a particular fascination. As an investment, however, they follow their own rules, which differ markedly from equities, bonds or gold. Anyone who understands these particularities can realistically assess the role investment diamonds can play in a portfolio. This article answers the most important questions that investors most frequently raise in conversation with us.
The right investment horizon: patience is rewarded
Investment diamonds are a long-term asset. A realistic horizon is five to ten years or more. Short-term speculation rarely makes sense in this market, because transaction costs and the spread between purchase and sale prices must first be earned back.
The true value driver is rarity, which continues to intensify over time. This is particularly evident in the segment of natural Fancy Color Diamonds. A telling example is the closure of the Argyle Mine in Western Australia in 2020. It supplied more than ninety percent of the world’s production of pink diamonds. Since then, a structurally declining availability has met persistently high demand.
Geopolitics and supply chains: risk and opportunity alike
Natural diamonds have for generations been regarded as a mobile and discreet store of value. This is precisely why they are found in the wealth of many families and family offices. Nevertheless, the market is not immune to geopolitical developments. Sanctions against Russian rough diamonds and the import restrictions of the G7 states have altered parts of the supply chain and raised the importance of a fully documented origin.
For investors, this development ultimately has a positive effect. Certified natural diamonds with a clear provenance gain in value, because traceability has itself become a mark of quality. In addition, a low correlation with equities and bonds makes diamonds a sensible building block for diversification. They should complement a portfolio, not replace its core.
What determines the price: rarity before size
The basis of every valuation is formed by the four familiar criteria of carat weight, colour, clarity and cut, always in conjunction with a certificate from a recognised laboratory such as GIA. From an investor’s perspective, however, one criterion is decisive: rarity.
Natural Fancy Color Diamonds, above all pink and blue in strong saturation, make up only a tiny fraction of global production and have historically shown the most consistent performance. In the colourless segment, only top qualities are relevant for investment: the highest colour and clarity grades, an excellent cut and no fluorescence. The quality of certification and the origin weigh more heavily than size alone.
Not a classic commodity: market structure and liquidity
Honesty is appropriate here: diamonds do not behave like a classic commodity. Unlike gold, there is no exchange-traded spot price, because every natural diamond is unique and not interchangeable. References such as the Rapaport list and trading platforms such as RapNet provide orientation, but the final price is negotiated.
Liquidity exists, but is slower than on exchange markets. A good sale requires access to the right trading channels. It is precisely here that professional guidance determines investment success, both at acquisition and at a later sale.
Conclusion: a niche asset for patient capital
Investment diamonds are a niche asset for patient capital, usually with a small single-digit percentage of the overall portfolio. They offer a tangible real asset, discretion and a low correlation to the financial markets, but not the liquidity of listed investments. Those who understand these characteristics and bring a long-term horizon will find in natural diamonds an asset class with a character of its own.
Would you like to know how natural diamonds can specifically complement your portfolio? We are happy to take time for a personal conversation and to show you, on the basis of current market data, which options suit your situation.
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