Why Choose Conflict-Free Diamonds?

At Lester & Brown, we also offer arrange of lab-grown diamonds, which provide an alternative to traditionally mined stones. These diamonds are identical in appearance and structure to natural diamonds but come with a significantly lower enviromental impact.

  • Ethical Sourcing

    Every diamond we offer is traced to its origins, guaranteeing that it has been mined with respect for human rights and environmental sustainability.

  • Quality and Craftsmanship

    Our diamonds are handpicked for their brilliance, cut and clarity, so you can be confident that your ring jewellery is as stunning as it is ethical.

  • Peace of Mind

    When you choose a conflict-free diamond, you are making a conscious decision to support practices that align with your values, knowing that your purchase has not contributed to conflict or harm.

What Are Lab-Grown Diamonds?

Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds. The only difference is their origin—rather than being extracted from the earth, they are cultivated in a controlled laboratory setting that replicates the natural conditions in which diamonds form.

Why Choose Lab-Grown Diamonds?

  • Sustainable & Ethical: Traditional diamond mining has a significant environmental impact, contributing to deforestation, carbon emissions, and habitat destruction. Lab-grown diamonds provide a sustainable alternative with minimal ecological footprint.

  • Conflict-Free: Unlike some mined diamonds, which have historically been linked to unethical practices and conflict zones, every lab-grown diamond at Lester & Brown is 100% traceable and ethically sourced.

  • Exceptional Value: Lab-grown diamonds are more accessible in price—often up to 85% more affordable than their mined counterparts—allowing you to invest in a larger or higher-quality stone without exceeding your budget.

Lab diamonds ring inspiration

Get inspired bu o9ur custom made engagement rings, individually with love and crafted by us.

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A Modern Approach to Luxury

Lab-grown diamonds represent the future of fine jewellery. Their increasing popularity is driven by those who seek both beauty and ethical integrity. These diamonds aren’t just stunning gemstones; they embody progress, sustainability, and a transparent supply chain.

With advancements in technology, lab-grown diamonds now meet the highest standards, ensuring they sparkle just as brilliantly as their mined counterparts. When you choose a lab-grown diamond, you’re making a statement that aligns with innovation and responsibility.

The Reality of Conflict Diamonds

The term conflict diamonds—also known as blood diamonds—refers to diamonds mined in war zones, where their sale is used to finance armed conflicts against legitimate governments. In certain regions, diamond mining has been linked to human rights abuses, child labor, and devastating violence.

Historically, diamonds from conflict areas have funded wars and fueled humanitarian crises. For instance, during the 1990s, rebel groups in Sierra Leone used diamonds to finance a brutal civil war, resulting in tens of thousands of deaths and displacements. According to reports, a significant portion of the global diamond trade has, at some point, been associated with such unethical practices.

The 2006 film Blood Diamond, starring Leonardo DiCaprio, shed light on this issue, but efforts to eliminate conflict diamonds from the market had already begun years earlier. Despite initiatives like the Kimberley Process—a certification scheme introduced to stem the flow of conflict diamonds—concerns about loopholes in the system remain.

Lester & Brown’s Commitment to Ethical Luxury

At Lester & Brown, we prioritise transparency and integrity. Every lab-grown diamond in our collection is carefully selected to ensure it meets our high standards of brilliance, cut, and clarity. Our skilled artisans craft each piece with precision, blending classic elegance with contemporary sensibilities.

Whether you're searching for the perfect engagement ring, a bespoke design, or a stunning accessory, Lester & Brown offers unparalleled craftsmanship and a promise of ethical excellence. When you choose a lab-grown diamond, you're investing in a future where beauty and responsibility go hand in hand.

Our Marketplace

Lester & Brown proudly offers an extensive marketplace featuring over 400,000 lab-grown diamonds, as well as a specialised collection of over 50,000 coloured lab-grown diamonds. Whether you're looking for a classic white diamond or a unique coloured gem, our selection ensures you’ll find the perfect piece.

MARKETPLACE

Explore Our Collection

Browse our exquisite selection of lab-grown diamond jewellery, including engagement rings, necklaces, bracelets, and more. Each piece tells a story of innovation, sustainability, and expert craftsmanship—values that define everything we do at Lester & Brown.

SHOP ENGAGEMENTS RINGS

Frequently Asked Questions

1. Are lab-grown diamonds real diamonds?

Absolutely. Lab-grown diamonds are real diamonds in every sense—chemically, physically, and optically identical to mined diamonds. The only difference lies in their origin: grown in a laboratory, rather than mined from the earth.

2. How are lab-grown diamonds created?

Lab-grown diamonds are produced using two advanced techniques:

High Pressure, High Temperature (HPHT): This method replicates the extreme pressure and heat found within the earth’s mantle, converting carbon into diamond crystals.

Chemical Vapor Deposition (CVD): This technique uses a gas mixture, such as methane and hydrogen, to deposit carbon atoms onto a diamond seed, layer by layer, until a rough diamond is formed.

Both processes result in diamonds that are visually, chemically, and structurally identical to those mined from the earth.

3. What are the benefits of choosing lab-grown diamonds over mined diamonds?

Lab-grown diamonds offer numerous advantages, including:

Ethical Sourcing: They are entirely conflict-free, with traceable origins that ensure no human rights violations are involved.

Eco-Friendly Practices: Lab-grown diamonds have a much smaller environmental footprint than mined diamonds, avoiding the deforestation, water pollution, and habitat destruction often caused by mining.

Cost Efficiency: These diamonds are more affordable than mined stones, offering excellent value without compromising on quality or be

4. Do lab-grown diamonds have resale value?

Like mined diamonds, lab-grown diamonds have a resale value, though traditionally, diamonds (both mined and lab-grown) do not appreciate in the same way as other investments. However, their affordability and ethical advantages make them a compelling choice for those prioritising beauty, sustainability, and value over resale potential.

5. Can lab-grown diamonds be insured?

Yes! Lab-grown diamonds can be insured just like mined diamonds. Many jewellery insurance providers offer coverage for loss, theft, and damage, ensuring peace of mind when investing in a lab-grown piece.

6. Do lab-grown diamonds come with certifications?

Absolutely. Reputable gemological labs, such as IGI (International Gemological Institute) and GIA (Gemological Institute of America), provide certification for lab-grown diamonds, grading them on the same criteria as mined diamonds—cut, color, clarity, and carat weight.

7. Can lab-grown diamonds be customised?

Yes! At Lester & Brown, we offer bespoke jewellery design services, allowing you to create a completely unique piece using a lab-grown diamond of your choice. Whether it’s an engagement ring, necklace, or bracelet, our expert jewellers can craft something that’s truly one of a kind.

8. Do lab-grown diamonds look different from mined diamonds?

No, lab-grown diamonds are identical in appearance to mined diamonds. Even trained gemologists require specialised equipment to distinguish between the two. With the same brilliance, fire, and sparkle, a lab-grown diamond is visually indistinguishable from a natural one.

9. How durable are lab-grown diamonds?

Lab-grown diamonds have the same hardness and durability as mined diamonds, ranking 10 on the Mohs scale of hardness. This makes them ideal for everyday wear and ensures they remain stunning for generations.

10. Are there different colours available for lab-grown diamonds?

Yes! In addition to traditional white diamonds, lab-grown diamonds are available in stunning fancy colours like blue, pink, yellow, and green. These coloured diamonds are created by introducing specific elements during the growth process, resulting in breathtaking hues.


Explore our extensive collection of over 50,000 coloured lab-grown diamonds in our Marketplace.

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