Lab Diamond Engagement Rings South Africa

Heritage & Co. stocks IGI-certified lab-grown diamond engagement rings in solid 18K gold — available online across South Africa, with prices published upfront. Our Claritas and Insignia collections feature D/VVS1 lab diamonds starting from R30,000+.

What is a Lab-Grown Diamond?

A lab-grown diamond is a real diamond — chemically, physically, and optically identical to a mined diamond — grown above ground in a controlled environment using either CVD or HPHT technology. Lab diamonds are graded by the same international gemological standards (IGI, IGI) and achieve the same hardness (10 on the Mohs scale), refractive index, and brilliance as mined diamonds.

The key difference is origin: lab diamonds are created without mining, making them a more ethical and environmentally responsible choice. They also retail at significantly lower prices than equivalent mined diamonds.

Why Buy a Lab Diamond from Heritage & Co.?

IGI Certified D/VVS1 — every Claritas diamond comes with an International Gemological Institute certificate confirming colour, clarity, cut, and carat weight
Solid 18K Gold — no plating, no compromise. All lab diamond rings are set in solid 18K yellow gold
South African owned — designed and made to order in Cape Town
Transparent pricing — all prices are publicly listed. No appointment needed to know what you'll pay
20-year warranty — on every ring, covering manufacturing defects
Free delivery — nationwide, fully insured

Lab Diamond Collections

Claritas — our flagship lab diamond engagement ring collection. Featuring elongated cushion cut, oval, and marquise cut lab diamonds in 18K yellow gold. Hidden halo and pavé settings. From R30,000+.

Insignia — a statement three-stone marquise lab diamond ring set in platinum with baguette side stones. For buyers who want presence and drama in a certified lab diamond.

Lab Diamond vs Moissanite — Which Should You Choose?

Both are excellent alternatives to mined diamonds. The key differences: lab diamonds are chemically identical to diamonds (carbon), certified by IGI, and start at R30,000+ at Heritage & Co. Moissanite (silicon carbide) is a distinct gemstone — slightly more brilliant, harder than sapphire, GRA-certified, and available from R15,500. If budget is a priority, moissanite delivers exceptional value. If you want a certified diamond for the same price as mid-range moissanite, Claritas is the answer. Read our full comparison →

Frequently Asked Questions

Are lab diamonds real diamonds?

Yes. Lab-grown diamonds are real diamonds with the same chemical composition (carbon), hardness (10 Mohs), and optical properties as mined diamonds. They are certified by IGI and are graded using the same 4Cs system.