Showroom 6A, Foyer B, Sovereign Quay, 34 Somerset Rd,
Green Point, Cape Town, 8001
FREE OFF STREET PARKING
Discover stunning lab grown diamonds at Grand Diamonds – scientifically perfected and beautifully crafted into timeless jewellery.
Our lab grown diamond collection offers the brilliance, durability, and luxury of natural diamonds at a more accessible price, making premium jewellery attainable without compromise.
Whether you’re searching for an engagement ring, wedding band, or custom design, our Cape Town showroom and online store offer exceptional quality and expert guidance.
Lab grown diamonds are real diamonds created using advanced technology that replicates natural diamond formation.
They are:
The only difference is their origin – grown in a laboratory rather than mined from the earth.
At Grand Diamonds, all our lab grown diamonds are responsibly sourced and fully certified.
Our lab grown diamonds are conflict-free and environmentally responsible, with a significantly lower carbon footprint.
Enjoy diamonds that are up to 60-80% more affordable than natural diamonds of the same quality.
Our lab grown diamonds are conflict-free and environmentally responsible, with a significantly lower carbon footprint.
Design your own ring or choose from our curated collection, handcrafted by our skilled jewellers.
With years of experience in fine jewellery, we provide personalised service and after-sales support.
Browse our exclusive collection of lab grown diamond jewellery, carefully curated for modern couples and discerning buyers.
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Each piece is crafted using premium metals including platinum, white gold, yellow gold, and rose gold.
|
Feature |
Lab Grown Diamonds |
Natural Diamonds |
|---|---|---|
|
Origin |
Laboratory created |
Earth mined |
|
Appearance |
Identical |
Identical |
|
Certification |
IGI |
GIA / IGI |
|
Price |
More affordable |
Higher Cost |
Both options are diamonds – the choice depends on your values, budget, and personal preference. Our consultants are happy to guide you through both options.
Read through our lab grown vs natural diamonds guide for more
When selecting a lab grown diamond, consider the 4Cs:
Determines brilliance and sparkle. Always prioritise excellent or very good cuts.
Most popular: D-G range for bright white appearance.
VS1–SI1 offers the best balance of beauty and value.
Choose size based on your budget and setting preference.
Our specialists will help you select the perfect balance for your needs.
Looking for something unique?
We offer a full custom design service for lab grown diamond jewellery.
|
Our Process |
||
|---|---|---|
|
1. |
Consultation (online or in-store) |
|
|
2. |
Design & CAD rendering |
|
|
3. |
Diamond selection |
|
|
4. |
Manufacturing |
Create a one-of-a-kind engagement ring designed around your story.
Experience our lab grown diamond collection in person at our Cape Town showroom.
Book an appointment to receive personalised guidance from our experts.
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are real diamonds that are chemically, physically, and optically identical to mined diamonds. The only difference is their origin - lab grown diamonds are created in a controlled laboratory environment rather than formed naturally in the earth. They are independently certified and graded using the same standards as natural diamonds, including cut, colour, clarity, and carat weight.
Lab grown diamonds offer excellent value for money, allowing you to purchase a larger or higher-quality diamond at a more accessible price compared to mined diamonds. While all diamonds, both natural and lab grown, should be viewed primarily as a meaningful purchase rather than a financial investment, lab grown diamonds are ideal for buyers prioritising beauty, ethics, and affordability. Their true value lies in their identical brilliance, certified quality, and lasting durability.
Yes. All our lab grown diamonds are independently certified and laser inscribed for your peace of mind. Our lab grown diamonds are graded by leading gemological laboratories such as GIA or IGI, using the same standards applied to natural diamonds, including cut, colour, clarity, and carat weight.
Absolutely. Custom engagement rings are at the heart of what we do. We specialise in designing bespoke lab grown diamond engagement rings tailored to your style, story, and budget. From selecting your diamond shape and size to choosing your preferred metal and setting, our team will guide you through every step; from consultation and CAD design to final craftsmanship.
Start the process: Design Your Own / Custom Engagement Rings
We require a 50% deposit to begin manufacturing your ring, with the remaining 50% due upon completion before collection or delivery.
For orders below ZAR 20,000, we offer Payflex as a convenient payment option, allowing you to split your purchase into interest-free instalments.
Ready to find your perfect lab grown diamond?
Visit Our Showroom
Trading Hours:
Monday – Thursday: 09h00 – 17h00
Friday: 09hoo – 16h30
Saturday: 09h30 – 12h30
Cape Town
Showroom 6A, Foyer B, Sovereign Quay, 34 Somerset Rd,
Green Point, Cape Town, 8001
FREE OFF STREET PARKING
Email: sales@granddiamonds.co.za
Phone: 021 418 2880
Whatsapp: 066 261 6583
Chat to us
Let us help you create something extraordinary.
Walk-ins Welcome | Booking Advised
Trading Hours:
Monday to Thursday: 09:00 - 17:00
Friday: 09:00 - 16:30
Saturdays: 09:30 - 13:00
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