Diamonds begin their story deep beneath the Earth—around 120–200 kilometres below the surface—where extreme pressure, heat and the perfect chemical environment allow pure carbon to crystallise. Once that crystal structure forms and hardens, it can take thousands of years for the Earth’s mantle to push the stones upwards, eventually bringing them close enough to the surface to be mined.

In most cases, diamonds form when parts of the Earth’s crust melt and sink into the mantle. As the carbon-rich liquid slowly cools, the diamond crystal structure begins to grow. Over time, geological events such as volcanic eruptions, earthquakes and shifting plates force these diamond-bearing rocks upwards. Only then do we have the chance to discover them.

Once mined, each rough stone must be expertly cut to unlock its brilliance. The sparkle we’re all drawn to is the result of precise faceting that allows light to reflect beautifully through the stone. A diamond’s value is influenced by many factors—cut, carat weight, clarity, colour, rarity and demand. For centuries, diamonds have symbolised love, wealth, achievement and status, which is why their desirability (and value) has remained strong.

For a long time, the only affordable alternative to a natural diamond was a cubic zirconia or moissanite—pretty stones in their own right, but not diamonds, and not made from pure carbon.

The Rise of Lab Grown Diamonds

That all changed when scientists discovered how to replicate the natural formation process inside a controlled laboratory environment. Using advanced technology, lab grown diamonds—also called lab created, man-made, engineered, ethical or cultured diamonds—are grown from carbon atoms arranged in the exact same crystal structure as a natural diamond.

Because they’re made of the same material, lab grown diamonds share the same optical, physical and chemical properties as mined diamonds. Even trained jewellers using a loupe usually cannot tell the difference. Only specialised equipment—worth thousands of dollars—can identify whether a diamond formed underground or in a lab.

Lab grown diamonds should always come with a proper certification that clearly states their origin, just like natural diamonds.

So… Which Is Better?

There’s no universal “right” answer—only what’s right for the individual.

Lab grown diamonds offer exceptional value, allowing you to achieve more size or quality for your budget. They’re also considered the more environmentally conscious option because they don’t require traditional mining.

Natural diamonds, on the other hand, carry their own unique story—one shaped over millions of years beneath the Earth. Some people love the romance and rarity of owning something naturally formed.

Both options are beautiful, durable and timeless. It simply comes down to personal preference.

To Sum Things Up

Lab grown diamonds are affordable, conflict-free, brilliant, luxurious and environmentally conscious—and visually identical to natural diamonds. Side by side, you truly cannot tell them apart. The only real difference is their origin.

At Morgan & Co, I guide my clients through both options every day. Whether you’re drawn to the history of a natural diamond or the innovation and value of a lab grown, I’m here to help you choose the piece that feels right for you and your partner.

If you’d like to explore your options, you’re welcome to book a free, no-obligation consultation—either in my Buderim studio or virtually.