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Halo Laboratory Grown Diamond Engagement Rings

A halo engagement ring features a central diamond encircled by a halo of smaller diamonds. The halo design enhances the centre diamond's sparkle and size.

What is a Laboratory Grown Diamond?

A laboratory grown diamond is a diamond that is created in a controlled laboratory environment using advanced technological processes. These diamonds are produced through methods such as Chemical Vapour Deposition (CVD) or High Pressure High Temperature (HPHT), replicating the natural conditions under which diamonds form in the Earth's mantle.

Key Characteristics of Laboratory Grown Diamonds


Laboratory grown diamonds possess the same physical, chemical, and optical properties as natural diamonds. They are real diamonds, identical in every way except for their origin.

Creation Process

Unlike natural diamonds, which take billions of years to form, laboratory grown diamonds are created in a matter of weeks. The CVD method involves a carbon-rich gas that breaks down and deposits carbon atoms on a substrate, forming a diamond. The HPHT method mimics the high pressure and high temperature conditions found deep within the Earth to create diamonds.

Quality and Certification

Laboratory grown diamonds are graded by the same renowned gemological laboratories, such as the Gemological Institute of America (GIA), ensuring their quality and authenticity. They are evaluated based on the four Cs: carat, cut, colour, and clarity.

Ethical and Environmental Benefits

Because they are created in a lab, these diamonds avoid the ethical and environmental issues associated with traditional diamond mining. This makes them an excellent choice for consumers who prioritise sustainability and ethical sourcing.


Laboratory grown diamonds are typically more affordable than their natural counterparts, offering exceptional value without compromising on quality. This allows you to choose a larger or higher-quality stone within your budget.

Choosing a laboratory grown diamond at McGuire Diamonds means selecting a beautiful, high-quality, and ethically sourced gemstone that embodies both innovation and sustainability.

The Differences

Lab Grown Diamonds and Natural Diamonds

Natural Diamonds

Formed over billions of years under extreme pressure and temperature deep within the Earth, natural diamonds are unique products of nature. They exhibit the same brilliance, fire, and scintillation as lab grown diamonds.

Lab Grown Diamonds

Created in a controlled laboratory environment, lab grown diamonds possess the same physical, chemical, and optical properties as natural diamonds. To the naked eye, they are indistinguishable from natural diamonds, displaying equal sparkle and beauty.

Quality and Grading

Both natural and lab grown diamonds are graded by reputable gemological laboratories, such as the Gemological Institute of America (GIA). They are assessed based on the four Cs: carat, cut, colour, and clarity. As a result, wearers can expect the same high standards of quality and brilliance in both types of diamonds.

Ethical Considerations

Natural Diamonds

The mining of natural diamonds can have significant environmental and social impacts, although many companies are adopting more sustainable practices. Wearers who are conscious of these factors may have concerns about the ethical implications of natural diamond sourcing.

Lab Grown Diamonds

Lab grown diamonds offer a sustainable and ethical alternative, as their production avoids the environmental damage and ethical issues associated with mining. This makes them an appealing choice for environmentally and socially conscious wearers.


Natural Diamonds

Due to their rarity and the extensive process required to extract them from the earth, natural diamonds tend to be more expensive.

Lab Grown Diamonds

Typically, lab grown diamonds are more affordable than their natural counterparts. This cost difference allows wearers to opt for larger or higher-quality stones within the same budget, without compromising on beauty or brilliance.


Both natural and lab grown diamonds are extremely durable and suitable for everyday wear. They rank 10 on the Mohs hardness scale, making them resistant to scratches and damage.

Sentimental Value

The sentimental value of a diamond often depends on the individual wearer. Some may prefer the historical and natural origin of a mined diamond, while others may value the technological innovation and ethical considerations behind a lab grown diamond.