Lab-grown versus natural diamonds: a comparative guide
Diamonds, a traditional symbol of elegance. They have also been significantly influenced by the introduction of laboratory grown diamonds. These synthetic gems offer a more affordable and ethically sourced alternative. Their optical, physical, and chemical properties are identical to natural, or mined diamonds - unlike diamond simulants. This year is the 70th anniversary of the world’s first lab-grown diamond, created by General Electric in 1954.1 It is a testament to the culmination of decades of global scientific research and development. The emergence of lab-grown diamonds as a convincing alternative to natural diamonds has led many consumers to reconsider their choices. This guide delves into the key differences, benefits, and considerations between lab-grown diamonds vs natural diamonds.
Origin and creation
Natural diamonds
Natural diamonds are formed deep within the Earth's mantle over billions of years through intense heat and pressure. They are mined from ancient volcanic pipes or alluvial deposits. Each natural or mined diamond is unique, bearing the geological history of its formation.
Producing lab diamonds
A lab-created diamond is also known as a synthetic or cultured diamond. This differs to look-a-like diamonds like cubic zirconia or moissanite. They are created in laboratories using two main methods:
- High-Pressure, High-Temperature (HPHT)
- Chemical Vapor Deposition (CVD).
These processes replicate the natural conditions under which diamonds form. This results in stones that are chemically, physically, and optically identical to their natural counterparts. Because of this, lab created diamonds test as real diamonds. Specialist equipment is needed to tell the difference between a lab diamond and a natural diamond.
Environmental impact
Natural diamonds
The extraction of natural diamonds often involves large-scale mining operations. These operations can have significant environmental and social impacts. Land disruption, habitat destruction, and carbon emissions are notable ecological concerns. Ethical issues like "conflict diamonds" have historically plagued the industry, although initiatives like the Kimberley Process aim to mitigate these problems.
Lab-grown diamonds
A lab diamond generally has a smaller environmental footprint. Less land is used to create lab grown diamonds and it results in fewer carbon emissions. However, laboratory energy consumption can be high, particularly if non-renewable energy sources are used. Many producers are now focusing on using renewable energy to enhance sustainability.1
Cost
Natural diamonds
Due to their rarity and the complex mining and supply chain process, natural diamonds tend to be more expensive. Prices are also influenced by the diamond's "Four Cs" – carat, cut, colour, and clarity—the larger and purer the diamond, the higher the cost.
Lab-grown diamonds
Lab-grown diamonds are generally 40-50% less expensive than natural diamonds of similar quality.2 The controlled production environment ensures consistency and efficiency, lowering consumer prices.
Quality and appearance
Natural diamonds
Natural diamonds boast a unique allure due to their long and ancient formation process. They often contain minuscule inclusions and variations that tell a story of their journey from deep within the Earth. This uniqueness can be a significant selling point for many.
Lab-grown diamonds
Lab-grown diamonds are virtually indistinguishable from natural diamonds to the naked eye. They exhibit the same brilliance, fire, and scintillation. Advanced gemmological equipment is required to detect the subtle differences that reveal a diamond's origin. Lab-grown diamonds are an attractive option for those prioritising appearance and quality without the natural premium.
Ethical considerations
Natural diamonds
The natural diamond industry has made strides in ethical sourcing. But issues like forced labour and funding of armed conflict remain concerns. Certified conflict-free diamonds provide a more ethically sound choice. But consumers must be vigilant about their diamond's provenance.
Lab-grown diamonds
Lab-grown diamonds sidestep many ethical issues associated with mining. They offer a guilt-free option for consumers concerned about human rights and environmental sustainability. As transparency in the supply chain is more straightforward, ethical assurances are more accessible.
Jewellery insurance
Whichever type of diamond you choose, you'll want to make sure it's protected. The loss or damage of a precious item like a diamond engagement ring would be devastating. You can protect against theft, damage, loss with appropriate jewellery insurance. Regardless of the type of diamond you have, some insurers may need a lab diamonds test to provide an accurate insurance valuation.
Conclusion
Choosing between lab-grown and natural diamonds hinges on personal values and priorities. If tradition, rarity, and the story behind the stone are paramount, natural diamonds hold a timeless appeal. However, if cost, environmental impact, and ethical considerations are essential, lab-grown diamonds present a modern, sustainable alternative. Ultimately, both options provide the enduring beauty and sparkle that make diamonds a cherished symbol of commitment and celebration.
Sources
1. abcnews.go.com/lab-grown-diamonds-sustainable-advertised
2. gemsociety.org/lab-grown-diamond-pricing
