What is a lab grown diamond?
A lab grown diamond is a laboratory grown diamond produced in a controlled setting rather than being mined from the earth. Just like a natural diamond, it is made of pure carbon arranged in crystal lattice structure. Lab grown are also known as lab created diamonds, synthetic diamonds, and man-made diamonds. They have nearly the same physical, chemical, and optimal qualities as of the diamonds that come from the earth. The only difference is where and how they are made.
How are lab grown diamonds made?
Lab grown diamonds are created using two methods: Chemical Vapour Deposition (CVD) and High Pressure High Temperature (HPHT). Both of these methods use pure carbon to form diamonds that are indistinguishable from natural diamonds. Lokendra Singh, a graduate gemologist from GIA states that both these production methods use a tiny diamond crystal called diamond seed, which acts as the foundation and a blueprint for its crystal structure. The main difference between CVD and HPHT diamonds is the way they are created. The HPHT process forms real diamonds by replicating the conditions (high pressure high temperature) under which natural diamonds are formed in a laboratory. While the CVD lab grown diamonds are created using a chemical process which involves using carbon gases to create diamonds in a controlled environment.
Are lab grown diamonds real?
Yes, lab grown diamonds are real diamonds. They are chemically, physically, and optically identical to natural diamonds. Both lab grown diamonds and natural diamonds are made using pure carbon arranged in the crystal lattice structure. This very structure is responsible for the brilliance, hardness, and fire of the diamonds. It's impossible to differentiate between the two types of diamond with the naked eye. Lab grown diamonds are created in a controlled laboratory environment, while natural diamonds are formed in earth's mantle over billions of years.
When were lab grown diamonds invented?
The first lab grown diamond was made by General Electric (GE) laboratories in 1954 by a team of scientists Howard Tracy Hall, Francis Bundy, Herbert Strong, and Robert Wentorf.
Is a lab grown diamond worth buying in 2026?
Lab grown diamonds are worth buying as they help you make most of your budget and are perfect for those looking for a sustainable, environment-friendly option. This is because lab grown diamonds cost less than natural diamonds of the same quality, this can allow you to purchase a larger diamond size or higher colour or clarity without spending more. Lab-created diamonds make environmentally responsible diamonds as they have a lower carbon footprint than mined diamonds. They are grown with ethical practices, so that you don't have to choose between quality and conscience.
Do lab grown diamonds sparkle like real diamonds?
Yes, lab grown diamonds sparkle just like natural diamonds. These lab-created diamonds are of high-quality and purity as they are made in controlled environment settings and are fully monitored until they are formed. These laboratory-created diamonds produce the nearly same sparkle, scintillation, and fire as of earth mined diamonds. Lokendra Singh, a GIA gemologist states that Laboratory-grown diamonds have the very same crystal structure of tightly bonded carbon atoms resulting in producing nearly the same properties as of natural diamonds.
What is the difference between natural diamonds and lab grown diamonds?
The difference between lab grown diamonds and natural diamonds is their origin, rarity, and how they are prized. Lab grown diamonds are created in a laboratory within a few days or weeks, while natural diamonds are formed deep within the earth surface under extreme pressure and heat. Lab-created diamonds are not naturally scarce and can be produced in large quantities owing to technological advances, however natural diamond supply is finite. The lab grown diamonds also cost less than mined diamonds, while the natural diamonds price rise with rarity.
Do lab grown diamonds look different to mined diamonds?
Lab grown diamonds and natural diamonds look identical to the naked eye and are potentially indistinguishable. According to the Gemological Institute of America (GIA), it's impossible by gemological observation and traditional diamond detectors to tell apart the difference between the two. The differences between lab grown diamonds and mined diamonds can only be detected by using specialist verification instruments. These specially developed screening equipment and advanced testing technology available at geological labs or reports from gemological laboratories can only help determine the difference between the two. Lokendra Singh, a GIA Graduate Gemologist notes that there are around 20-40 instruments available in the market for diamond industry professionals for manufacturers, retailers, and designers.
Are lab grown diamonds the same as synthetic diamonds?
Yes, synthetic diamonds also known as laboratory grown diamonds or lab grown diamonds are made in labs and have the same crystal structure as of natural diamonds.
Are lab grown diamonds the same as cubic zircon?
No, lab grown diamonds are not the same as cubic zircon. According to the National Association of Jewellers cubic zirconia makes for a synthetic stone that is often confused with diamonds. Cubic zirconia is a man-made stone that mimics the appearance of diamonds and is not the same as lab grown diamonds. Cubic zirconia is composed of zirconium dioxide in a controlled laboratory environment, unlike lab grown diamonds which are made of pure carbon.
Will lab grown diamonds hold their value?
Yes, lab grown diamonds will hold their value over time. However, they have a lower resale value when compared to natural diamonds. Lab grown diamonds are generally sold at 30%-40% less than their original price. This is due to the fact that they lack rarity and are mass produced in laboratories. Despite this fact, a survey by YouGov, 2025 shows that nearly 3 in every 10 adults in the UK are likely to buy lab grown diamonds in future, with 73% UK buyers citing affordability as the key reason.
Are lab grown diamonds good for engagement rings?
Lab grown diamonds make for excellent engagement rings as it allows consumers to purchase larger or higher quality diamonds while avoiding the environmental and human rights issues associated with mining. These rings make for a budget-friendly option for couples who want to purchase their dream engagement ring without burning a hole in their pocket. According to the Grand View Research Report lab grown diamonds are soaring in the UK jewellery market and are cheaper than 20%-40% than natural diamonds.
How much should a 1 carat lab diamond cost?
One carat lab grown diamond can cost anywhere from £300-£4,000. One carat lab grown diamonds strikes the perfect balance between sparkle, value, size, and practicality.
What is the new lab grown diamond grading system?
The Gemological Institute of America (GIA) is dropping the internationally recognised 4Cs system (colour, cut, clarity, and carat) for lab grown diamonds and are replacing it with the new system. The new lab grown diamond grading system applies to D-Z lab grown diamonds and classifies lab-created diamonds into 'premium' and 'standard', based on the overall assessment of cut, colour, and clarity. Any lab grown diamond that does not meet the minimum criteria for standard will not receive GIA certification.
