The Sustainability Argument: Real Impact or Greenwashing?

"Lab-grown diamonds are eco-friendly!"

This is the #1 marketing claim. But is it true?

The Carbon Footprint Reality

Growing a 1ct diamond requires 150-200 kWh of electricity.

If that electricity comes from coal (China's grid mix): 160kg CO2

If from renewables (hydroelectric): 10kg CO2

Mining a 1ct natural diamond: 160kg CO2 + land disruption + water use

Verdict: Lab-grown is better, but not zero-impact.

The Honest Positioning

Don't claim "carbon neutral" unless you can prove it. Instead, say:

• "No mining required"
• "Reduced environmental impact"
• "Conflict-free guaranteed"

The Real Sustainability Win

It's not about carbon—it's about human rights.

Lab-grown diamonds eliminate:

• Child labor
• Conflict financing
• Unsafe working conditions

This is the stronger argument.