Lab Grown vs Natural Diamonds : Everything You Need To Know

When it comes to purchasing a diamond – whether for an engagement ring, an investment, or a treasured luxury accessory – one of the biggest questions you’ll face is: lab-grown or natural?

Both options share the same sparkle, brilliance, and durability that make diamonds so captivating. Yet, they each have distinct origins, histories, and values that are worth exploring before you make your choice.

Let’s look at the similarities and differences between lab-grown and natural diamonds, discover the story behind each, and weigh the benefits so you can decide which is the perfect fit for you.

What Are Natural Diamonds?

Natural diamonds are created deep within the Earth’s mantle under immense heat and pressure – a process that takes billions of years. They are transported to the surface through volcanic eruptions and then mined, cut, and polished before reaching jewellers.

Diamonds have been admired for centuries. Their earliest recorded use as gemstones dates back to 4th century BC India, and they remain one of the most sought-after natural treasures today. Modern diamond sources include Russia, Canada, Botswana, and Australia.

Owning a natural diamond is like holding a fragment of the Earth’s history – rare, ancient, and enduring.

What Are Lab-Grown Diamonds?

Lab-grown diamonds – sometimes called man-made or synthetic diamonds – are produced in controlled laboratory conditions that mimic the natural diamond-forming process. The two main methods are:

• High Pressure High Temperature (HPHT)

• Chemical Vapor Deposition (CVD)

These technologies can create a diamond in a matter of weeks, rather than billions of years, yet the result is chemically, physically, and optically identical to a natural diamond.

Although synthetic diamonds were first developed in the 1950s for industrial use, it is only in the past 15–20 years that gem-quality lab-grown diamonds have become popular in jewellery – particularly as interest in ethical and sustainable alternatives has grown.

Similarities Between Lab-Grown and Natural Diamonds

• Both are made of carbon atoms in a crystal lattice structure.

• Both are visually identical – even expert gemologists need specialised equipment to tell them apart.

• Both can be graded by respected institutions (GIA, IGI) using the 4Cs: Cut, Colour, Clarity, and Carat.

• Both score a 10 on the Mohs hardness scale, meaning they’re equally durable and suitable for everyday wear.

Key Differences

• Origins

  • Natural: Formed over billions of years within the Earth.

  • Lab-Grown: Created in weeks within a laboratory.

• Environmental Impact

  • Natural: Mining can cause land disruption, water pollution, and carbon emissions.

  • Lab-Grown: Generally more sustainable, though energy-intensive methods can vary in impact depending on power sources.

• Pricing

  • Lab-grown diamonds typically cost 30–50% less than natural diamonds, thanks to shorter supply chains and scalable production.

  • Natural diamonds are more expensive due to rarity, mining costs, and historic prestige.

• Rarity

  • Natural diamonds are a finite resource, making them rare and unique.

  • Lab diamonds can be produced in abundance, reducing their rarity.

• Resale Value

  • Natural diamonds tend to hold their value and can appreciate over time.

  • Lab-grown diamonds usually depreciate faster, making them less suited for investment.

Benefits of Natural Diamonds

• Rarity & Tradition – A natural diamond carries an unmatched legacy.

• Perceived Value – Seen as more prestigious, with better potential resale or heirloom worth.

• A Geological Wonder – A timeless piece of Earth’s history, billions of years in the making.

Benefits of Lab-Grown Diamonds

• Cost-Effective – More diamond for your budget, whether in size or quality.

• Ethical Sourcing – No mining involved; many buyers value the reduced environmental and human rights concerns.

• Customisation – Laboratories can create diamonds to precise specifications, often with fewer inclusions.

Final Thoughts: Which Should You Choose?

There is no universal answer – it comes down to what matters most to you.

• Choose a natural diamond if you value rarity, tradition, and timeless prestige.

• Opt for a lab-grown diamond if you prioritise sustainability, ethics, or getting more brilliance for your budget.

Whichever path you choose, you’ll own a diamond that is virtually indestructible, endlessly brilliant, and deeply meaningful.

Considering a diamond purchase? We’d be delighted to guide you further. Book a consultation with us to explore your options and find the diamond that truly reflects your story.