Do You Still Believe That Diamonds Are The Rarest Gemstone?
For years, diamonds have held the crown as the ultimate symbol of rarity and luxury. But here’s a little plot twist: they’re not actually the rarest gemstone out there!
In fact, sapphires are far rarer in nature, about ten times rarer than diamonds, to be exact. Even we were shocked when we found out.
Sapphires naturally occur in far fewer places and in way smaller quantities.

So Why Does Everyone Think Diamonds Are Rarest Gemstone?
The answer comes down to some genius marketing (looking at you 1940s ad campaigns!). Over the decades, a few iconic jewellery campaigns didn't just sell diamonds, they created desire, shaped culture and controlled supply.
As a result, the idea that mined diamonds equalled 'rare' and 'essential' skyrocketed. They became seen as the ultimate symbol of luxury, romance, and exclusivity, even though, in reality, their rarity is far less dramatic than we’ve been led to believe.

But Rarity Doesn't Equal Responsibility
At CARAT* London, we believe luxury should never come at the expense of the planet. That’s why we don’t support the destructive practices of traditional gemstone mining.
All our sapphires are lab-grown, giving you the same breathtaking sparkle and vibrant colour you’d expect from mined stones, without the ethical impacts. By choosing lab-grown gems, you’re embracing a future where beauty, rarity, and responsibility coexist seamlessly.

Are Diamonds The Rarest Gemstone
- Diamonds Are Not The Rarest Gemstone - sapphires are about ten times rarer in nature. y
- The perception of diamonds as “rare” comes largely from clever marketing campaigns, not scarcity.
- Lab-grown sapphires offer the same sparkle as mined stones whilst being a more ethical option.
- Choosing lab-grown gems allows you to enjoy luxury responsibly, without contributing to destructive mining practices.
- Rarity doesn’t have to come at the expense of ethics; beautiful, sustainable options exist.