Your cart is currently empty.

What Are Lab Grown Diamonds?

Lab grown diamonds are produced in laboratories using processes that mimic how natural diamonds are created in the depths of the Earth over millions of years. Utilising advanced technology, these diamonds are manufactured from carbon atoms arranged in a unique crystal structure, embodying the same optical and chemical properties as their natural counterparts.

Lab grown diamonds have seen substantial improvements in quality and cost-effectiveness over the past decade, enabling their application in industrial use as well as in jewellery. They are an affordable, high-quality alternative to earth-mined diamonds.

Why Choose A Lab Grown Diamond?

Beauty & Quality

Lab grown diamonds exhibit the same captivating sparkle and brilliance with their physical, chemical, and optical properties mirroring that of mined diamonds.

Value For Money

Thanks to the ability to produce lab grown diamonds in large quantities within a short period, they have become a less expensive alternative to natural diamonds.


Natural and lab created diamonds present equally ethical options today, with lab grown being a favoured choice for non-mined diamonds.

How Are Lab Grown Diamonds Made?

The creation of lab grown diamonds begins with a minuscule seed of pre-existing diamond, which undergoes a procedure of extreme pressure and heat that imitates nature's diamond-forming process, using either the Chemical Vapour Deposition (CVD) or the High Pressure High Temperature (HPHT) method.

In the CVD process, the seed diamond is placed in a plasma reactor chamber where carbon-rich gases are added at low pressure. Microwaves heat these gases to generate plasma, breaking apart the gas molecules and allowing carbon atoms to bond to the seed, layer by layer.

Alternatively, the HPHT method creates diamonds by placing the seed in a giant mechanical press alongside a carbon starting material. The carbon separates under high pressure and temperature, attaching to the cooler diamond seed and forming new diamond layers.

These processes could take several weeks or months, with the exact duration depending on the diamond's size, colour, and additional characteristics.

What Is The Difference Between Lab Grown And Natural Diamonds?

Lab grown diamonds share identical physical, chemical, and optical characteristics as natural diamonds, so they display the same captivating fire, scintillation, and sparkle. Formed from pure carbon, both types have the same crystalline structure, making them almost impossible to distinguish to the untrained eye.

Yet, due to their distinct creation process, their trace elements and inclusions might vary under magnification. What really separates them is their rarity; natural diamonds, formed over thousands of years deep in the Earth, are finite in number, whereas lab grown diamonds can be infinitely produced.

All lab grown diamonds should come with certification indicating their laboratory origin. Regardless of their genesis, both lab grown and natural diamonds offer the same visual beauty.

Lab Grown Ring & Jewellery Settings

To enhance the DX mining-free offering, our engagement ring jewellery settings are crafted with lab grown accent diamonds when set with a lab grown centre diamond. If you select a lab grown centre diamond, the accent diamonds on your setting will be of the same origin.

How Are Lab Grown Diamonds Graded And Certified?

Like their naturally mined counterparts, lab grown diamonds undergo an impartial grading process by an independent gem laboratory. This grading focuses on the four critical characteristics: cut, clarity, carat, and colour.

Each diamond's brilliance is determined by its cut, arguably the most influential factor. Clarity refers to a diamond's transparency and absence of flaws, while colour grading assesses a diamond's colourlessness. Carat relates to the diamond's weight and size.

Each lab grown diamond is meticulously scrutinised, receiving a quality rating that mirrors the stringent process applied to natural diamonds.

All DX lab grown diamonds over 0.30ct are accompanied by independent certification.

Are Lab Grown Diamonds Priced Differently To Natural Diamonds?

Lab grown diamonds disrupt traditional diamond pricing dynamics, offering a uniform price per carat weight, in contrast to natural diamonds, which are priced according to their unique attributes as well as their scarcity. Thanks to the limitless production potential of lab grown diamonds, they are more affordable than their natural counterparts. 

The DX Difference

We make buying a diamond easy, and affordable. Whether from the comfort of your home, or from our boutique showrooms. It is important that you choose a diamond that is both good value and absolutely love! Offering over 80,000 Natural and Lab Grown diamonds to choose from, learn everything you need to know about finding the most perfect diamond.

All diamonds are GIA or IGI Certified. Access over 80,000 Natural or Lab Grown diamonds at the best possible price, Australia-wide.

Buying direct and save up to 40% as we help you cut out the middle man. At DX, we help you make the most of your budget while securing the best possible diamond.

We'll help you find the perfect Lab Grown or Natural diamond, and customise the setting to create the perfect engagement ring or jewellery piece.

"Esther answered all our questions with so much detail it made the purchasing experience very easy and gave us the confidence that we were getting an amazing quality diamond! We were very impressed by the range of high-grade diamonds they had available compared to other jewellers. They even had our custom order ready under lead time - highly recommended."

— Madalyn Bartlett

Frequently Asked Questions

Everything you need to know about Lab Grown Diamonds at DX.