Natural Diamond Scenario Assessment
The Natural Diamond
Market at 2030
The Battle and the War · Four futures across two critical axes
The Bigger Picture
The industry is focused on the battle. It may be losing the war.
I have worked in the diamond industry for over 20 years, and I feel the conversation today misses the bigger picture challenge. It is still too focused on the battle, not the war. The obsession with LGDs is an industry-centric argument. Once this topical battle is over, it might be too late to act on the real issue — do enough people still desire a culturally relevant product to sustain the sector?
We have seen this movie before. Rubies, emeralds and sapphires went through the same synthetic disruption decades ago and emerged with very different market structures. So let’s set the LGD jewellery noise aside for a moment, keep natural diamonds as the focus, and look at what the future could look like across two critical axes.
My hope is that this elevates the discussion from the tactical to the longer-term strategic — which might drive the collaboration and partnerships necessary to shape the future you desire.
Natural rough production in 2023,
down from a 152 Mct peak in 2017
The numbers tell the story already in motion. Natural rough output is declining. LGDs now account for 52–61% of US engagement-ring sales. China’s polished demand share has fallen from an ~18% peak to ~12%. Debswana and De Beers have announced further sharp production cuts.
The question is not whether the industry is changing — it is whether the industry will shape that change, or simply endure it. The next five to six years of true category marketing, supply-side adaptation and demand-creation will decide which of four worlds materialises.
The Two Axes
The Battle and the War
Winning back lost markets and opening genuinely new ones
This is the bigger strategic fight — the proxy for true category marketing, actively growing the overall pie rather than just fighting LGDs in existing channels. It includes recovering China to (or above) its 2015 peak share, expanding into the Middle East, Southeast Asia, Latin America, and creating new demand through experiential, investment and corporate channels. Without success here, a meaningful share of mines becomes uneconomic, closures follow, host governments lose revenue and jobs, and investment in the sector dries up permanently.
Convergence toward the post-synthetics coloured gemstone model
This is the tactical fight over structure, differentiation and how the remaining market is distributed. High convergence is a proxy for the extent to which naturals fail to reclaim the market taken by LGDs. Even if the battle is won in the USA or other core markets, the collective industry will still shrink dramatically — perhaps to half its former size — unless the war is also won and new markets open to absorb the displaced volume. The coloured-gemstone precedent (ruby, emerald, sapphire) shows where this road leads: extreme top-end concentration and 60–80% ASM dominance.
Scenario Matrix
Four worlds for 2030
Quadrant 3 · Lost both
The Rarefied Relic
Category marketing failed. No new markets opened. Natural diamonds contracted into a classic coloured-gemstone niche — smaller, top-heavy, expertise-driven. The industry paid the full price.
Read more ↓Quadrant 2 · Won the war, lost the battle
The Premium Flywheel
New high-end markets opened globally, but only at the very top. The market fully converged to a coloured-gemstone structure — yet avoided the worst because premium demand absorbed enough volume.
Read more ↓Quadrant 4 · Muddled through
The Segmented Steady State
Partial successes in branding slowed the decline but never drove true category growth. The industry is permanently smaller — but stable. A classic muddle-through outcome.
Read more ↓Quadrant 1 · Won both
The Broad Revival
True category marketing worked. Natural diamonds clawed back lost ground and opened genuinely new demand pools. The industry feels resilient, expansive and future-facing.
Read more ↓Scenario Deep Dives
Inside each world
The Broad Revival
On a warm evening in Dubai’s Gold Souk, a young Emirati couple chooses a 1.8-carat natural D/VS1 for their engagement while, half a world away, Indian middle-class families in Bengaluru queue for milestone jewellery sets. In New York, London and Shanghai, “provenance experience” packages and investment-grade diamond funds have become mainstream.
Dubai Gold Souk · Bengaluru · Shanghai · 2030How We Got Here
The industry finally shifted from defensive “natural vs LGD” messaging to aggressive, coordinated category growth campaigns — think global “Real is Rare 2.0” initiatives funded by majors, retailers and governments, plus targeted cultural marketing in China tying natural diamonds to national pride and long-term wealth preservation.
Supply & Structure
Because the overall pie grew, widespread mine closures were avoided. Majors continued full-mix industrial mining with modest expansions. Mid-tier commercial stones still flow reliably. ASM remains marginal at around 20% of supply — unchanged from today. Standardised grading, liquid trading and a balanced volume pyramid are intact.
New Demand Engines
China recovered strongly to (or above) its 2015 peak share. Emerging markets across Southeast Asia, the Middle East and Latin America added fresh volume. Investment-grade diamond funds and fractional ownership platforms scaled successfully, creating a new asset-class channel that did not exist a decade earlier.
Profit Pools
Mining royalties and host-government revenues — including Botswana’s — are healthy. Midstream polishing thrives on volume. Downstream branding enjoys strong margins across multiple geographies. The natural diamond industry feels resilient, expansive and future-facing.
The Premium Flywheel
A private viewing room in Singapore hosts a collector examining a 14-carat fancy vivid pink from a documented Canadian pipe, complete with blockchain provenance and a personal video from the mine. Auction houses in Dubai, Hong Kong and New York now regularly set records. Investment vehicles and experiential luxury programmes have scaled successfully among ultra-high-net-worth families worldwide.
Private viewing, Singapore · 2030How We Got Here
Marketing efforts pivoted sharply after 2026 toward ultra-premium positioning and new asset-class narratives — exactly as fancy coloured diamonds already behave today — while accepting LGD dominance in the mid-market. Traceability technology, auction-house partnerships and family-office products created concentrated high-end demand sufficient to offset mid-tier losses.
Structural Convergence
Natural polished jewellery supply is still 35–45% below 2020s levels — the mid-market has largely disappeared, displaced by LGD jewellery. Industrial mines have rationalised sharply: only the richest zones yielding large or fancy material remain economic. ASM has expanded well above today’s ~20% share as small operators chase high-value pockets.
Why It Survives
Because new premium markets opened, the remaining high-end supply is fully absorbed and profitable. Finest quality — often less than 5–10% of volume — drives the majority of value, exactly as in coloured gems today. Traceability and origin stories command massive premiums. The natural diamond now feels like a top Myanmar ruby: rare, story-rich and aspirational.
Profit Pools & Host Countries
Profit pools are narrow and top-heavy: mining JVs and luxury brands capture the lion’s share through scarcity pricing; specialised dealers, cutters and auction houses behave like coloured-gem traders. Botswana and other host countries negotiated tougher terms on remaining premium rough — but overall volumes and jobs are down. Resource nationalism is sharpest precisely where remaining rough is most valuable.
The Rarefied Relic
In a hushed Geneva auction room a 12-carat vivid blue natural from a closed mine sells for millions per carat to a collector. High-street jewellery counters worldwide stock only LGD pieces for everyday sparkle. Mine-visits and investment products never scaled beyond a tiny elite. China’s natural demand stayed weak; emerging markets remained price-sensitive.
Geneva auction room · 2030How We Got Here
Category marketing stayed fragmented and defensive — focused on winning the battle of differentiation in core markets rather than the broader war of growing the pie. Consumer sentiment in China and emerging markets continued shifting toward affordable LGDs or alternative luxuries. This is the continuation of today’s trajectory: sustained LGD price pressure, weak China recovery, and failure to develop compelling new demand channels.
The Cost of Losing the War
Because category marketing failed to grow the pie, a meaningful share of mines became uneconomic and closed permanently — echoing the production trajectory already visible today. Volumes will not return. Host governments have lost significant revenue and jobs; investment in new capacity has vanished.
Upstream & ASM
ASM has grown noticeably around legacy alluvial sites, mirroring the 60–80% ASM dominance in coloured gems today. The upstream is fragmented and opaque outside branded channels — tracking provenance is harder and more contested. Host country fiscal pressure has led to higher royalties and offtake demands on whatever premium rough remains.
Who Survives
Natural diamonds survive as heirloom objects and collector items for the wealthy — exciting, scarce and story-driven — but the broader industry has contracted into a high-variance, expertise-heavy niche. The biggest winners are a handful of mining JVs controlling the best remaining assets, specialised dealers, auction houses and ultra-luxury brands.
The Segmented Steady State
A young couple in a Mumbai mall chooses between a natural 1.5-carat ring — traditional emotional appeal — and an LGD version for budget-friendly sparkle. Traditional markets have stabilised; emerging economies have grown slowly. China’s natural segment recovered partially but never reignited the glory years.
Mumbai mall · 2030How We Got Here
Partial successes in branding and traceability — stronger “natural = heirloom” messaging in core markets — slowed the decline but never translated into aggressive category expansion or new demand engines. A classic muddle-through path: LGDs took the volume segment, China stabilised at a lower level, and incremental marketing efforts won parts of the battle but failed to win the war.
Supply & Mining
Without broader category growth, a meaningful share of mines became uneconomic and closed — consistent with the ongoing decline from 152 Mct peak to a forecast 110–120 Mct range. Host-nation revenues and jobs contracted permanently. Majors continue core operations on a reduced scale. ASM grows only modestly.
What Remains
Mid-quality stones still circulate in reasonable — but lower — volumes through established retail and online channels. LGD jewellery dominates the budget and fashion segments. Many consumers still choose natural diamonds for traditional milestones, supported by targeted branding positioning naturals as “the authentic heirloom choice.”
Profit Pools
Under pressure but stable across the remaining chain. Mining margins are thinner on a reduced output. Midstream volume players persist at lower scale. No single part of the chain collapses, but no dramatic new value pools emerge either.
Profit Pool Comparison
Where value accrues across scenarios
| Scenario | Natural mining returns | Natural premium/luxury tier | Natural mid-market | Host country outlook | Overall industry size |
|---|---|---|---|---|---|
| The Broad Revival | Strong, broad mix | Healthy, volume-supported | Resilient | Revenues & jobs intact | Grows vs today |
| The Premium Flywheel | Concentrated at top ore | Exceptional — scarcity pricing | Largely gone to LGD | Volume down, tension up | Smaller but profitable top |
| The Rarefied Relic | Contracted, fragmented | Narrow but viable | Effectively gone | Fiscal pressure, job losses | ~50% of 2020s levels |
| Segmented Steady State | Reduced but stable | Moderate, branding-supported | Present but softer | Contracted, stabilised | Permanently ~half size |
Shaping the Future
Now let’s think about what we can do
These four futures are grounded in today’s realities — LGD price pressure, mining economics, consumer sentiment shifts (US LGD takeover, China weakness), and the coloured-gem precedent (extreme top-end concentration, high ASM share). The scenarios are not predictions. They are a call to action.
Once the LGD battle is truly over, the war for the long-term relevance, size and prosperity of natural diamonds will have already been won — or lost — by the actions we take today. The collaboration and partnerships necessary to shape the desired future must begin now, not after the dust settles.
True Category Marketing
Will the industry invest in growing the overall pie — new geographies, new channels, new narratives — rather than just defending existing share against LGDs?
New Demand Creation
Can experiential, investment and corporate channels be scaled into genuine volume? Can China be won back, and can the Middle East, Southeast Asia and Latin America become meaningful new pillars?
Supply-Side Adaptation
Will mining majors, host governments and the midstream coordinate on supply discipline, provenance infrastructure and value-chain investment — or will each actor optimise for itself at the expense of the category?