Book an appointment

Make your own wedding ring workshop Learn more

The Science of Scarcity

How Rare Is
Your Diamond?

Enter your diamond's characteristics below and discover exactly where it sits among the rarest objects on Earth — informed by research from MIT, GIA, and leading geological institutions.

Discover Your Diamond's Rarity

Enter the details from your diamond certificate (GIA, AGS, IGI, or similar) to generate your personalised rarity report.

Enter to two decimal places
Putting Diamonds in Perspective

The Numbers Behind
The Stone

< 0.00001%
of Earth's diamonds have made it to within 0.5 miles of the surface
Diamonds rise only via rare kimberlite volcanic eruptions. Of ~6,000–7,000 kimberlite pipes identified globally, fewer than 60 have ever been economically mined.
~15%
of near-surface diamonds are larger than 1mm in size
The vast majority of diamonds recovered from kimberlite are "micro-diamonds" — specks too small to ever be cut and polished for jewellery.
Top 0.00002%
If you own a cut & polished diamond of 1mm or larger, you already own a diamond in the top 0.00002% of all diamonds on Earth
Relative to the estimated quadrillion tons in Earth's mantle, every gemstone diamond is an extraordinary rarity.
If all the diamonds ever mined in human history were placed into an Olympic-sized swimming pool, they would fill it only 12.5% of the way to the top
~5.5 billion carats mined = ~1,100 metric tonnes = ~313 cubic metres. An Olympic pool holds 2,500 m³.
Journey to the Source

Where Diamonds Form
& How They Reach You

Click or tap any layer to learn more. Diamond formation occurs at extraordinary depths — most remain forever out of reach.

🔴 Inner Core 🟠 Outer Core 🟤 Lower Mantle 💎 Upper Mantle 🌋 Lithosphere ✨ Surface Surface · 0 km 💎 Diamond Zone 3,200 mi · 5,150 km Kimberlite Pipe 6,371 km Not to scale

Click Any Layer to Explore

Each layer of Earth plays a different role in the story of diamonds. From formation deep in the mantle to their epic journey to the surface — select a layer to learn more.

Primary diamond formation zone
Kimberlite pipe (transport route)
Surface / alluvial deposits
Rarity in Context

Why Every Gem Diamond Is Extraordinary

Of the estimated one quadrillion tons of diamond locked deep within Earth, only a vanishingly small fraction has ever journeyed close enough to the surface to be found. That journey requires a rare volcanic event — a kimberlite eruption — that occurs perhaps once every few tens of millions of years.

Of the diamonds that do reach near-surface kimberlite pipes, the majority are microscopic specks unsuitable for gemstone use. Only around 20–30% of mined rough diamonds possess the clarity, colour, and size to be cut and polished into jewellery.

What this means is profound: the diamond on your finger has survived a journey of billions of years, extraordinary geological pressures, and vanishingly rare volcanic transport. It is, in every meaningful sense, one of the rarest objects you will ever hold.

Check Your Diamond's Rarity ↑
1–3 Billion
Years old — the typical age of a natural diamond
90–150 mi
Below the surface where diamonds form in the upper mantle
~6,000
Kimberlite pipes identified worldwide — fewer than 60 have ever been mined
250 tons
Of ore must typically be mined to produce a single 1-carat polished diamond

Diamond rarity checker

Popping the question?

Choose from natural or lab-grown diamond engagement rings. Made in our East London workshop