Our collection of lab grown diamonds offers exceptional brilliance, ethical sourcing, and outstanding value. At Grand Diamonds in Cape Town, we specialise in certified lab grown diamond jewellery, including engagement rings, wedding bands, and bespoke designs crafted to your style. Lab grown diamonds are chemically, physically, and visually identical to mined diamonds, making them a beautiful and sustainable choice for modern jewellery.

Sale
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Alexandra

Starting from R11 250,00
Alexandra is a contemporary design featuring an Oval cut center diamond set in sharp cat claws for an edgy yet refined finish. The band is accented with a striking layout of small pear-shaped diamonds. The pears create a modern sculptural silhouette that is fresh and effortlessly stylish. Various stone sizes available on request.
Inquiry This product has multiple variants. The options may be chosen on the product page
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Baguette Half Eternity Band

Starting from R13 000,00
Our Baguette Half Eternity Ring is made up of 8 Baguette Stones with a total Carat weight of 0.88ct. Each ring in this collection is an absolute show stopper. The perfect anniversary gift, wedding band or self purchase.
Inquiry This product has multiple variants. The options may be chosen on the product page
Sale
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Camilla

Starting from R11 700,00
Camilla showcases understated power. A sleek tube-set solitaire that speaks volumes in quiet confidence and timeless poise. Various stone sizes available on request.
Inquiry This product has multiple variants. The options may be chosen on the product page
Sale
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Charlotte

Starting from R14 400,00
Charlotte is the perfect embodiment of romance and graceful feminity. At its heart lies a dazzling round brilliant center stone framed by a delicate milgrain band adorned with alternating marquise cut and small round diamonds. The detailed arrangement creates a vintage lace-like effect that sparkles from every angle. Various stone sizes available on request.
Inquiry This product has multiple variants. The options may be chosen on the product page
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Classic Flat Band

Starting from R8 500,00
A timeless symbol of commitment, this classic flat wedding band is crafted in radiant white, yellow or rose gold with a clean, minimalist profile. Its flat surface and polished finish offer a modern yet enduring look, perfect for those who appreciate subtle elegance. Designed for comfort and everyday wear.
Inquiry This product has multiple variants. The options may be chosen on the product page
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Classic Full Eternity Wedding Band

Starting from R25 000,00
Our Classic Round Cut Full Eternity Ring is made up of 19 Round Brilliant Cut Stones with a total Carat weight of 3.2ct. Each ring in this collection is an absolute show stopper. The perfect anniversary gift, wedding band or self purchase.
Inquiry This product has multiple variants. The options may be chosen on the product page
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Classic Half Eternity Wedding Band

Starting from R10 500,00
Our Petite Classic Half Eternity Ring is made up of 22 Round Brilliant Cut Stones with a total Carat weight of 0.22ct. Each ring in this collection is an absolute show stopper. The perfect anniversary gift, wedding band or self purchase.
Inquiry This product has multiple variants. The options may be chosen on the product page
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Curved Half Eternity Band

Starting from R14 500,00
Our Slightly Curved Half Eternity Ring is made up of 9 Round Brilliant Cut Stones with a total Carat weight of 0.63ct. Each ring in this collection is an absolute show stopper. The perfect anniversary gift, wedding band or self purchase.
Inquiry This product has multiple variants. The options may be chosen on the product page
Sale
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Cushion & Round Trilogy Engagement Ring

Starting from R16 200,00
Our Cushion and Round Trilogy Engagement Ring features a Cushion center stone with smaller round cut stones on each side representing your past, present, and future. Expertly crafted for maximum sparkle, this elegant design offers classic beauty with meaningful charm.
Inquiry This product has multiple variants. The options may be chosen on the product page
Sale
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Cushion Cut Halo Engagement Ring

Starting from R22 500,00
Our Cushion Cut Halo Ring showcases a radiant cushion-shaped center stone, elegantly set in a delicate four-claw setting. A fine micro pavé halo surrounds the center, adding extra sparkle, while the slender micro pavé band completes the look with timeless sophistication
Inquiry This product has multiple variants. The options may be chosen on the product page
Sale
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Cushion Cut Pavé Engagement Ring

Starting from R17 550,00
Our Cushion Cut Pavé Ring showcases a Cushion center stone, elegantly set in a delicate four-claw setting with a hidden halo for extra sparkle. A pavé band completes the look with timeless sophistication
Inquiry This product has multiple variants. The options may be chosen on the product page
Sale
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum

Cushion Cut Solitaire Engagement Ring

Starting from R13 050,00
Our Four Claw Cushion Cut Engagement Ring has a beautiful cushion cut center stone set in four round claws on a simple band in the metal of your choice featuring a hidden halo.
Inquiry This product has multiple variants. The options may be chosen on the product page

Why Choose Lab Grown Diamonds

Lab grown diamonds are created using advanced technology that replicates the natural diamond-forming process. The result is a real diamond with the same sparkle, durability, and brilliance as a mined stone. Because they are grown in controlled laboratory environments, lab grown diamonds offer a more sustainable and ethical alternative while remaining fully authentic.

Many clients choose lab grown diamonds because they provide exceptional value. You can often select a larger or higher-quality diamond for the same budget compared to a mined stone, without compromising on beauty or durability.

Learn more in our lab grown vs natural diamonds guide.

Certified Lab Grown Diamonds

At Grand Diamonds, all our lab grown diamonds are independently certified and laser inscribed for your peace of mind. Our stones are graded by leading laboratories such as IGI or GIA, ensuring that every diamond meets strict standards for cut, colour, clarity, and carat weight.

Certification guarantees the authenticity and quality of your diamond, giving you complete confidence in your purchase.

Bespoke Lab Grown Diamond Jewellery

Custom design is at the heart of what we do. Whether you are looking for a unique engagement ring, elegant diamond earrings, or a meaningful piece of jewellery, our team will guide you through the design process. From selecting your diamond to choosing the perfect setting, we help you create a piece that reflects your personal style.

Visit Our Cape Town Showroom

We invite you to explore our collection of lab grown diamonds in Cape Town and view our designs in person. Our team offers private consultations where you can compare diamonds, explore ring settings, and receive expert guidance to help you find the perfect piece.