Showroom 6A, Foyer B, Sovereign Quay, 34 Somerset Rd,
Green Point, Cape Town, 8001
FREE OFF STREET PARKING
Lab Grown Diamonds
in Cape Town
Discover stunning Lab Grown Diamonds
at Grand Diamonds
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.
What are Lab Grown Diamonds?
Lab grown diamonds are real diamonds created using advanced technology that replicates natural diamond formation.
They are:
- Chemically identical to mined diamonds
- Physically identical to mined diamonds
- Visually indistinguishable
- Independently certified
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.
Why Choose Lab Grown Diamonds
from Grand Diamonds?
Ethical & Sustainable
Our lab grown diamonds are conflict-free and environmentally responsible, with a significantly lower carbon footprint.
Exceptional Value
Enjoy diamonds that are up to 60-80% more affordable than natural diamonds of the same quality.
Certified Quality
Our lab grown diamonds are conflict-free and environmentally responsible, with a significantly lower carbon footprint.
Custom Craftsmanship
Design your own ring or choose from our curated collection, handcrafted by our skilled jewellers.
Trusted Local Expertise
With years of experience in fine jewellery, we provide personalised service and after-sales support.
Shop
Lab Grown Diamond Jewellery
Browse our exclusive collection of lab grown diamond jewellery, carefully curated for modern couples and discerning buyers.
Engagement Rings
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Cushion & Round Trilogy Engagement Ring
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
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Cushion Cut Halo Engagement Ring
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
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Cushion Cut Pavé Engagement Ring
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
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Cushion Cut Solitaire Engagement Ring
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
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Emerald & Trapezoid Trilogy Engagement Ring
Our Emerald and Trapezoid Trilogy Engagement Ring features an Emerald center stone with smaller Trapezoid 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
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Emerald Cut Halo Engagement Ring
Our Emerald Cut Halo Ring showcases an emerald center stone, elegantly set in a delicate four-claw setting. A fine 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
Wedding Bands
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Baguette Half Eternity Band
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
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Classic Flat Band
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
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
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
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
18kt Rose Gold
18kt White Gold
18kt Yellow Gold
9kt Rose Gold
9kt White Gold
9kt Yellow Gold
Platinum
Flat Band with Swiss Set Diamonds
Featuring Swiss-set round brilliant Natural, Lab-Grown Diamonds or Moissanite stones spaced evenly around the band, this design offers just the right amount of sparkle for everyday wear or a meaningful wedding band. Clean lines, a polished finish, and timeless style make it a versatile piece.
Available in your choice of metal and diamond sizes to suit your unique preference.
Inquiry
This product has multiple variants. The options may be chosen on the product page
Each piece is crafted using premium metals including platinum, white gold, yellow gold, and rose gold.
Lab Grown vs Natural Diamonds
|
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.
How to Choose the Right
Lab Grown Diamond
When selecting a lab grown diamond, consider the 4Cs:
Cut
Determines brilliance and sparkle. Always prioritise excellent or very good cuts.
Colour
Most popular: D-G range for bright white appearance.
Clarity
VS1–SI1 offers the best balance of beauty and value.
Carat
Choose size based on your budget and setting preference.
Our specialists will help you select the perfect balance for your needs.
Custom Lab Grown Diamond Rings
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.
Visit Our Cape Town Showroom
Experience our lab grown diamond collection in person at our Cape Town showroom.
- Private consultations
- Diamond viewing
- Ring sizing
- Design advice
Book an appointment to receive personalised guidance from our experts.
Frequently Asked Questions
FAQ
Are lab grown diamonds real diamonds?
Yes. They are chemically and physically identical to mined diamonds.
Do lab grown diamonds hold their value?
They offer excellent value and are ideal for buyers prioritising beauty, ethics, and affordability.
Are lab grown diamonds certified?
All our lab grown diamonds are independently IGI certified.
Can I customize my ring?
Yes. We specialise in custom lab grown engagement rings.
Do you offer financing?
Contact us to discuss available payment options.
Book
Your Consultation
Ready to find your perfect lab grown diamond?
Visit Our Showroom
Walk-In Clients Are Most Welcome! BOOKING ADVISED
Trading Hours:
Monday – Thursday: 09h00 – 17h00
Friday: 09hoo – 16h30
Saturday: 09h30 – 12h30
OUR ADDRESS
Cape Town
Email: sales@granddiamonds.co.za
Phone: 021 418 2880
Whatsapp: 066 261 6583
Chat to us
CONTACT FORM
Let us help you create something extraordinary.