Lab-Grown Diamond Engagement Rings in Adelaide

Lab-grown diamonds are real diamonds — chemically, physically and optically identical to mined stones — grown in a laboratory rather than the earth. For many couples they offer a larger, brighter stone for the same budget, with a transparent origin. At Simon Alexander, we design and make lab-grown diamond engagement rings to order in our Adelaide boutique.

A real diamond, a different origin

A lab-grown diamond is not an imitation. It is carbon, crystallised under the same conditions that form a natural diamond — just created in weeks rather than over millions of years. To the eye, and under a loupe, it is a diamond. The difference is origin, traceability, and price.

Why couples choose lab-grown

• More stone for your budget — a lab-grown diamond typically costs less per carat, so the same spend reaches a larger or higher-grade stone.
• Independently certified — our lab-grown diamonds come with GIA or IGI certification (most commonly IGI), so you know exactly what you’re getting.
• Clear, ethical origin — created in a controlled environment, with a known source.
• The same brilliance — identical fire, sparkle and durability to a mined diamond.

We work with both natural and lab-grown diamonds. Neither is “better” — it comes down to what matters to you. We’ll talk you through both honestly, with no pressure either way.

Browse our lab-grown diamonds

Start with the stone. We hold a selection of certified lab-grown diamonds — round brilliant, oval, pear, emerald and marquise cuts — ready to set into a ring of your own design. Once you’ve found the one, we design the setting around it. Browse our lab-grown diamonds.

Designed and made in Adelaide

Every ring is designed with you and crafted by our team in our Adelaide CBD boutique. You choose the stone — natural or lab-grown — the metal, and the design. We sketch, render in CAD for your approval, then make it. Typical turnaround is four to six weeks.

Our lab-grown diamonds are independently certified by GIA or IGI, and as with every piece, you’ll receive a written valuation with your ring.

Book a consultation

Come and see the difference for yourself. Visit our boutique at Level 1, 14 King William Street, Adelaide, or call (08) 8231 0700 to arrange a private consultation.