The Complete Guide to Lab-Grown Diamonds

Welcome to Forum Jewellers, your premier destination for exquisite jewellery in the heart of Broadstone in Poole. At Forum Jewellers, we pride ourselves on offering a wide range of stunning jewellery options, from the traditional and classic to contemporary and stylish.

With a legacy of award-winning customer service, we are committed to providing you with a memorable shopping experience. 

Whether you’re seeking the perfect engagement ring, looking for the ideal gift for a loved one or exploring the world of lab-grown diamonds, our knowledgeable team is here to guide you every step of the way. For enquiries or assistance, call 01202 600350.  

Understanding Lab-Grown Diamonds

Imagine a world where brilliance meets sustainability and luxury harmonises with ethics. Lab diamonds, also known as synthetic or cultured diamonds, have revolutionised the jewellery industry. They share the same allure, strength, and sparkle as their natural counterparts, yet with a unique twist. These ethically and environmentally responsible diamonds offer a guilt-free sparkle for conscious customers. 

As you delve deeper into this article, you’ll uncover the process behind lab-grown diamonds, from how they’re made to the differences between them and mined diamonds and their eco-friendly advantages.

Lab-Grown Diamonds in the Luxury Market

In recent years, lab-grown diamonds have taken the jewellery world by storm, redefining elegance and sustainability. This growing trend is driven by a profound shift in consumer values. Discerning buyers are no longer solely captivated by the exquisite sparkle of diamonds; they seek ethical and environmentally responsible choices. 

Lab diamonds perfectly align with these evolving preferences. Crafted with precision in controlled laboratory settings, they offer impeccable clarity and purity, rivalling their mined counterparts. Beyond their visual allure, these gems carry the assurance of ethical sourcing, free from the taint of conflict diamonds, and a significantly reduced carbon footprint. 

How Lab-Grown Diamonds Are Made

The process of creating lab-grown diamonds is a marvel of modern science and technology, offering an environmentally friendly alternative to mined diamonds. 

  • Selection of Carbon Source: Lab diamonds start with a carbon source, often in the form of a tiny “diamond seed” or carbon-rich material like graphite. 
  • High-Pressure, High-Temperature (HPHT) Method: In the HPHT method, the carbon source is placed in a laboratory press, subjected to extremely high pressure (around 725,000 pounds per square inch) and temperatures (over 2,200 degrees Celsius), replicating the conditions deep within the Earth’s mantle. 
  • Chemical Vapour Deposition (CVD): The CVD method involves placing the diamond seed in a chamber filled with carbon-rich gas. When heated, the gas decomposes, and carbon atoms bond to the seed, layer by layer, creating a diamond crystal. 
  • Crystal Growth: Over several weeks or months, carbon atoms arrange themselves into a crystal lattice structure, forming a lab-grown diamond. 
  • Quality Assessment: The created diamond is then carefully examined for quality and size. 

Lab-Grown vs. Mined Diamonds 

There’s no doubt that lab diamonds share a captivating allure with mined diamonds, but they aren’t identical in every respect. They differ significantly in their origin, environmental impact, and cost. 

Mined diamonds naturally form deep within the Earth’s mantle over millions of years, brought to the surface through volcanic eruptions. In contrast, lab-grown diamonds are created in controlled laboratory settings, starting from a carbon source, and grown using advanced technology. 

The next thing to consider is the environmental impact. Lab diamonds have a significantly lower environmental footprint. Mining for natural diamonds can lead to habitat disruption, deforestation, and the release of greenhouse gases. In contrast, lab-grown diamonds reduce the need for destructive mining practices and are considered a more sustainable choice. 

Regarding purity, lab-grown diamonds often have fewer inclusions and imperfections due to the controlled growth process, resulting in a higher clarity rating. Mined diamonds, while naturally unique, may contain more visible inclusions. 

Lastly, lab-grown diamonds are typically more affordable than their natural counterparts of similar quality, making them an attractive option for those seeking value without compromising on beauty. 

The Advantages of Choosing Lab-Grown Diamonds 

Opting for lab-grown diamonds offers a host of compelling advantages: 

  • Ethical Sourcing: Lab-grown diamonds are conflict-free, ensuring that your purchase does not contribute to unethical practices in the diamond industry. 
  • Reduced Environmental Impact: These diamonds require minimal land disruption and have a significantly lower carbon footprint, aligning with eco-conscious values. 
  • Exceptional Quality: Lab-grown diamonds often exhibit higher clarity and fewer imperfections, resulting in a breathtaking sparkle and brilliance. 
  • Affordability: They are typically more budget-friendly than natural diamonds, allowing you to choose larger or more elaborate jewellery pieces without compromising on quality. 
  • Customisation: Lab-grown diamonds offer greater flexibility in creating unique, bespoke jewellery designs to match your personal style. 
  • Innovation: Embracing technology and innovation, lab-grown diamonds represent the future of sustainable luxury, embodying both beauty and conscience. 
  • Transparency: The controlled production process ensures transparency and traceability, giving you confidence in your purchase. 

Popular Cuts and Styles in Lab-Grown Diamonds 

Lab diamonds offer a world of versatility when it comes to popular cuts and styles, allowing you to find the perfect expression of your personal taste and style. 

Here are just a few examples, many of which you’ll find in our online and physical shops: 

  • Round Brilliant: The classic round cut is timeless and renowned for its dazzling brilliance. It maximises the diamond’s fire and sparkle, making it a popular choice for engagement rings. 
  • Princess Cut: Another popular choice for engagement rings, the Princess Cut is known for its sharp, square shape and pointed corners. This cut exudes modern elegance and is cut our customers often opt for. 
  • Emerald Cut: With its clean lines and step-cut facets, the emerald cut emphasises clarity and sophistication. It’s perfect for those who appreciate understated glamour. 
  • Oval Cut: Oval-cut lab diamonds offer a unique blend of tradition and contemporary style. They create an illusion of elongated fingers, making them another winner for engagement rings, but wouldn’t look out of place embedded in a bracelet or a necklace. 
  • Pear-Shaped: This hybrid of the round and marquise cuts combines the best of both worlds. Pear-shaped diamonds are distinctive and often used in pendants and earrings. 
  • Halo Settings: Adding smaller lab-grown diamonds around the central stone creates a halo effect, enhancing the overall brilliance and glamour of the piece. 
  • Vintage Styles: Diamonds are perfect for vintage-inspired designs, featuring intricate detailing, milgrain edges, and filigree patterns for a timeless and romantic look. 

Whether you’re drawn to classic elegance, modern chic, or vintage charm, lab-grown diamonds offer a wide range of cuts and styles to suit your preferences and create stunning jewellery pieces that reflect your unique personality. 

Lab-Grown Diamond Certification 

Just like their mined counterparts, lab diamonds come with certifications that verify their quality and origin. These certificates provide crucial information about the diamond’s characteristics, such as carat weight, colour, clarity, and cut. 

Certification ensures transparency and confidence in your purchase, offering peace of mind that your lab-grown diamond meets the highest standards. Every diamond purchased from Forum Jewellers meet these high standards. 

Caring for Your Lab-Grown Diamond 

Taking care of your lab-grown diamond jewellery is essential to ensure its longevity and everlasting brilliance. 

Clean your lab-grown diamond jewellery regularly to remove dirt, oil, and residues that can dull its sparkle. Soak the piece in a mixture of warm water and mild detergent, then gently scrub with a soft toothbrush. Rinse thoroughly and pat dry with a clean, lint-free cloth. 

Keep your lab-grown diamonds away from harsh chemicals and cleaning agents that can damage the metal settings or affect the diamond’s lustre. Remove your jewellery when doing household chores or using cleaning solutions. 

Store your lab-grown diamond jewellery separately in a soft pouch or jewellery box to prevent scratching or tangling. Diamond jewellery can scratch other pieces, so avoid mixing them. 

Periodically inspect your jewellery for loose stones or damaged prongs. If you notice any issues, have them repaired by a professional jeweller promptly to prevent further damage. 

Lastly, consider professional cleaning and inspection at least once a year. A jeweller, such as Forum Jewellers, can expertly clean, polish, and check for any potential issues, ensuring your lab-grown diamond jewellery remains as stunning as the day you acquired it. 

Lab-Grown Diamond FAQs 

 1. Are lab-grown diamonds as durable as natural diamonds? 

Lab-grown diamonds exhibit exceptional durability, mirroring the hardness and resilience of natural diamonds. Their identical crystal structure ensures lasting brilliance and resistance to wear. 

2. Do lab-grown diamonds have inclusions or imperfections? 

Lab-grown diamonds are typically purer, with fewer inclusions. However, like natural diamonds, they may still have minor imperfections, although these are often less noticeable. 

3. What is the environmental impact of lab-grown diamonds? 

Looking for an environmentally-friendly option? Lab-grown diamonds are the perfect choice, as they require fewer natural resources and have a smaller carbon footprint compared to mined diamonds, making them a sustainable option. 

4. Can lab-grown diamonds be resized or re-cut? 

Yes, lab-grown diamonds can be resized and re-cut by skilled jewellers, just like natural diamonds, offering flexibility in customising your jewellery. 

5. Are lab-grown diamonds more affordable than natural diamonds? 

Absolutely! Lab-grown diamonds tend to be more budget-friendly than their natural counterparts, making them an attractive choice for those seeking high-quality, cost-effective diamond jewellery. 


Easily one of our greatest joys is serving our customers the finest jewellery options a, from eye-catching wedding rings and engagement rings to gorgeously redesigned antique heirlooms. And we enjoy receiving feedback from our satisfied customers! If you’d like to leave us a review or read what others have said, head over to our ‘Reviews’ page now. 

Contact Us 

If you have any questions or require assistance, please don’t hesitate to get in touch with us. Our dedicated team is here to help. You can reach us on 01202 600350 for immediate assistance, visit our store in Broadstone, Poole, or drop us an email at [email protected]. 

Alternatively, you can use our convenient contact form to message us, and we’ll get back to you promptly. Whether it’s about our wide range of jewellery options, jewellery repairs, or our full redesign service, we’re here to provide you with the information and support you need. Your satisfaction is our priority, and we look forward to hearing from you soon.