If you're shopping for a diamond in 2026, you'll be asked one question almost immediately: natural or lab-grown? Both are real diamonds - not simulants like cubic zirconia or moissanite - made of the same crystallised carbon, graded on the same 4Cs, and often certified by the same labs (GIA, IGI, HRD). The difference is entirely in how they're formed and what that means for price, rarity, and value over time.
What's actually different
Natural diamonds formed 1-3 billion years ago under extreme heat and pressure deep in the earth's mantle, then were carried to the surface by volcanic activity. Every one is geologically unique, and supply is inherently limited to what's already in the ground.
Lab-grown diamonds are created in weeks using CVD (Chemical Vapour Deposition) or HPHT (High Pressure High Temperature) methods that replicate the same natural growing conditions in a controlled setting. The result has identical optical, physical, and chemical properties - even gemologists cannot tell the difference without specialised equipment that detects trace growth patterns.
Price: the biggest practical difference
This is where the two diverge sharply. A lab-grown diamond typically costs 60-80% less than a natural diamond of equivalent size, colour, and clarity. That gap has widened further as lab-grown production has scaled up, meaning your budget goes considerably further - a lab-grown 1.5ct stone often costs less than a natural 0.7ct stone of comparable quality.
Value retention
Here's the trade-off that matters most for long-term value: natural diamonds have historically held resale value better than lab-grown, because natural supply is finite while lab-grown supply can scale to meet demand, which puts sustained downward pressure on lab-grown prices. If resale value or heirloom status matters to you, this is worth weighing carefully. If your priority is maximising size and quality for your budget, lab-grown is difficult to beat.
Sustainability and sourcing
Lab-grown diamonds avoid the environmental footprint of large-scale mining, and every stone we offer - natural or lab-grown - is fully traceable and conflict-free, certified by independent gemological laboratories.
Which should you choose?
There's no universally correct answer - it depends on what you value:
- Choose natural if provenance, rarity, and long-term value retention matter most to you.
- Choose lab-grown if you want to maximise carat size and clarity for your budget, or prioritise a lower environmental footprint.
The good news is you don't have to decide blind. Our Diamonds & Gemstones collection lets you filter and compare certified natural and lab-grown stones side by side by shape, carat, colour, and clarity - and our Ring Studio lets you pair whichever you choose with a setting built around it.