Answer
The cost of lab-grown diamonds vs natural diamonds differs significantly, with lab-grown diamonds typically priced lower because they can be manufactured at scale. Natural diamond prices reflect their one-of-a-kind nature: geological rarity, finite supply and individual characteristics. But upfront price is only part of the picture. Resale potential, environmental, social impact and emotional significance can all influence how buyers assess a diamond’s long-term value.
What drives the cost of lab-grown diamonds vs natural diamonds?
Natural diamonds
Lab-grown diamonds
Finite supply creates rarity, supporting higher prices.
Scalable production keeps supply high and prices lower.
Geological supply cannot be increased to meet demand.
Production costs can fall as manufacturing scales.
Detailed 4Cs grading helps determine price.
GIA’s broader quality assessment can influence price.
Typically higher, reflecting geological rarity and natural origin.
Typically lower, due to abundant supply.
Rarity has supported average appreciation of 2-3% annually over 50 years.
Mass production has driven prices down, with values falling over 80% in five years.
Rarity and quality can support stronger resale value.
Often resell far below their original purchase price if they can be traded in at all.
The cost of lab-grown diamonds vs natural diamonds comes down to more than an upfront price. To understand what you’re really paying for, it helps to look at how each is produced, how quality is assessed and what happens to value over time. From environmental considerations to resale and emotional significance, here’s what to know before making the comparison.
The cost of LGDs
To better understand the real cost of LGDs vs natural diamonds, it’s important to understand their origins, starting with what a lab-grown diamond is and how it is produced.
Machinery used in the production of LGDs
LGDs can be produced in less than a few weeks using two main technologies: High-Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD). These repeatable manufacturing processes allow supply to increase in response to demand.
This abundance is a key reason LGDs cost less than natural diamonds. (opens in a new window) The cost of real diamonds is influenced by their finite geological supply. Diamond size and value (opens in a new window) are also influenced by quality factors including cut, color and diamond clarity (opens in a new window), but rarity remains an important factor in natural diamond pricing.
When did lab-grown diamonds start: the shaky beginning
LGDs were first produced in 1953 by ASEA in Sweden and were later produced commercially by General Electric several years later as a vital industrial material, initially for the tooling of military armaments and later for automobile manufacture. The material they created was unsuitable for jewelry.
It wasn’t until the 2000s that colorless LGDs emerged and could be produced commercially in large quantities. Since then, advancements in technology and lower production costs have contributed to an explosion in the supply of LGDs; a tenfold increase since 2018. As production became more scalable and efficient, the cost per carat fell, allowing greater volumes of LGDs to enter the market at lower prices.
Quality standards: what you need to know
The 4Cs still rule everything
The 4Cs of diamonds (opens in a new window) help to explain quality and price, but the GIA now approaches the certification of natural diamonds and LGDs differently.
- Cut: Cut influences brilliance and price. For natural diamonds, the GIA provides a cut grade where applicable. For LGDs, cut and finish contribute to the broader quality assessment.
- Color: Natural diamonds are graded on the D–Z scale. For qualifying colorless-to-near-colorless LGDs, color contributes to a “Premium” or “Standard” assessment. LGDs below these simple standards will not be provided with a certification.
- Diamond clarity: Natural diamonds receive an individual clarity grade. For qualifying LGDs, diamond clarity contributes to the overall assessment.
- Carat: Measures weight for both natural diamonds and LGDs and can influence price.
GIA reports these characteristics differently: natural diamonds retain detailed 4Cs grading, while qualifying colorless-to-near-colorless LGDs receive a broader quality assessment of either “Standard” or “Premium” if they meet these standards.
Natural diamonds have character
Natural diamond formation occurred between 90 million and 3.5 billion years ago, under intense heat and pressure far below the Earth’s surface in the mantle. It’s this formation process and journey to the surface, that creates the unique set of clarity features in natural diamonds, resulting in the one-of-a-kind gemstones we know and love.
Inclusions are a natural part of a diamond’s individual character, creating a unique fingerprint that reveals details of its formation deep within the Earth. While buyers may ask, “what’s the highest diamond clarity?”, rarity and value are shaped by the diamond’s complete combination of characteristics, not clarity alone.
Environmental impact of lab grown vs natural diamonds
In the debate of LGDs vs natural diamonds, energy consumption often comes up as a major consideration, with LGDs often hailed as the more ‘sustainable’ option.
In truth, diamond sustainability is far more nuanced. The life-cycle emissions of LGDs can vary substantially depending on how and where they are made. Production can require significant energy and water, while nickel, iron and cobalt may also be used, meaning LGD production is not necessarily mining-free.
Meanwhile, the natural diamond industry has introduced initiatives to reduce mining impacts, including renewable energy, water recycling and funded mine rehabilitation. Major producers, including De Beers Group and Rio Tinto, are audited members of the Responsible Jewellery Council, helping ensure their operations meet its rigorous standards. Of the waste generated during diamond recovery, 99% is rock, while 84% of the water used is recycled. Mine rehabilitation plans also set aside funding to restore land for sustainable community use after mining ends.
Natural diamonds also support more than 10 million jobs worldwide. Botswana, for example, has used diamond revenue to support economic development, education and healthcare.
For buyers weighing up cost and value, the lower price of LGDs is only part of the picture. The environmental initiatives, land rehabilitation and economic contribution associated with responsibly sourced natural diamonds are also part of what buyers may consider, particularly when buying or investing in diamonds long-term. (opens in a new window)
The emotional significance of a diamond
When you consider something a savvy investment, do you only take its financial value into account? Natural diamonds hold value (opens in a new window) in ways that go beyond price, from their cultural and symbolic importance to their emotional significance as heirlooms passed on to future generations. Their geological rarity, individual characteristics and billions-of-years-old journey from deep within the Earth can give each natural diamond a personal significance that grows with the memories attached to it. This enduring connection underpins the emotional significance of a diamond.
The value of lab grown vs natural in the long term
When comparing long-term diamond value (opens in a new window), the lower upfront cost of an LGD can make it seem like the more cost-effective choice. But purchase price is only one part of the equation.
Research suggests that LGDs often have a lower to no resale value with factors such as steep depreciation, lower demand in the secondary market and an overabundance of similar products all contributing to this. While it’s impossible to predict what the future holds, resale value, rarity and longevity are important factors to consider before purchasing a diamond.
Ultimately, the choice between LGDs and natural diamonds (opens in a new window) lies with you and your priorities. If rarity, history, responsible sourcing and the contribution natural diamonds can make to diamond-producing communities matter to you, these are all part of the long-term picture. For buyers looking for heirloom diamonds (opens in a new window) to pass down through generations, natural diamonds carry a significance that extends well beyond their purchase price. After all, a diamond is forever.
FAQs
Can lab-grown diamonds replace natural diamonds?
LGDs can offer a similar visual appearance, but they cannot replicate the geological rarity, individual origin and billions-of-years-old formation story of a natural diamond.
How do natural diamonds contribute to brand storytelling?
Natural diamonds give brands stories rooted in rarity, provenance, craftsmanship and origin, from the diamond’s formation to the finished jewel.
Are lab-grown diamonds cruelty-free?
“Cruelty-free” is not a recognized diamond grading or sourcing standard. Buyers should instead consider the producer, supply chain, energy source and working practices behind an LGD.
What are the advantages of natural diamonds?
Natural diamonds combine geological rarity, individuality and durability with cultural significance and heirloom potential. Responsible production can also support employment and diamond-producing communities.
Are lab-grown diamonds innovative luxury goods?
LGDs use innovative HPHT and CVD technology, but luxury is also defined by rarity, provenance and long-term value. Natural diamonds have long been the choice of royalty and high jewelry houses, where rarity and individuality are central to their appeal.
Are lab-grown diamonds ethical?
There is no universal ethical designation for LGDs. Their impact varies according to factors including energy sources, manufacturing practices and supply-chain transparency.
Do natural diamonds retain cultural relevance?
Yes. Natural diamonds remain closely associated with engagements, weddings, anniversaries and heirloom jewelry, while appearing everywhere from royal engagements and red carpets to the jewelry people wear every day. That visibility, alongside their rarity, keeps natural diamonds culturally relevant and aspirational.
How do natural diamonds compare on ethics?
Responsible natural diamond production can involve traceability, environmental rehabilitation, independently audited standards and economic contributions to mining communities.
Is lab-grown diamond sourcing clearer than mining?
Not necessarily. Transparency still depends on disclosure around the manufacturer, energy source, materials and supply chain. LGD production can also rely on mined materials such as nickel, iron and cobalt, meaning its sourcing story extends beyond the laboratory.
Why do natural diamonds vary so much in price compared to lab-grown diamonds?
Natural diamond prices reflect their geological rarity, individual characteristics and unique history. LGDs can be manufactured at scale, creating an abundant supply that is reflected in their lower prices. Factors such as carat, cut, color and a high level of diamond clarity (opens in a new window) also influence the cost of natural diamonds.
How does diamond cut influence pricing in both lab and natural diamonds?
Diamond cutting (opens in a new window) affects brilliance and therefore pricing in both natural diamonds and LGDs, with better-executed cuts generally commanding higher prices.
Are fancy colored diamonds treated differently from standard diamonds in pricing?
Yes. For fancy color diamonds (opens in a new window), rarity and color intensity can become dominant pricing factors, placing them in a different valuation category.
Sources
- https://4cs.gia.edu/en-us/simulants-moissanite-and-lab-grown-diamonds/ (opens in a new window)
- https://web-assets.bcg.com/the-future-of-the-natural-diamond-industry/ ↩︎
- Natural Diamond Council, “GIA Redefines Lab Grown Diamond Grading”, https://www.naturaldiamonds.com/engagement-rings/lab-grown-diamond-grading/ (opens in a new window) accessed 9 September 2026
- https://www.gia.edu/gems-gemology/fall-2024-diamond-reflections/↩︎ (opens in a new window)
- https://www.naturaldiamonds.com/diamond-facts-full-report/ ↩︎
- https://www.naturaldiamonds.com/diamond-sustainability/environmental-protection/ ↩︎
- https://varniya.com/do-lab-grown-diamonds-hold-value/ ↩︎
