Skip to content

Receive a pair of Ralph Jacobs Earrings when you shop online

R 10K+ Receive a Free pair of Sterling Silver Moissanite Earrings

R 40K+ Receive a Free Pair of Gold Lab Grown Diamond Earrings

R 80K+ Receive a Free pair of Gold Diamonds Earrings

Ralph Jacobs South Africa
  • Diamond Rings
    • Design your own Engagement Ring
      • Start with a Ring
      • Start with a Natural Diamond
      • Start with a Lab Diamond
      • Start with Coloured Diamond
    • Shop by Ring Styles
      • Solitaire
      • Three Stone
      • Hidden Halo
      • View All
    • Shop by Shape
      • Round
      • Oval
      • Cushion
      • Emerald
      • Pear
      • Princess
      • Marquise
    • Shop by Metal
      • 9K White Gold
      • 9K Yellow Gold
      • 14K Rose Gold
      • 18K White Gold
      • 18K Yellow Gold
      • Platinum
    • Engagement Ring Guide
      • Gemstone Guide
      • Metal Guide
      • Ring Size Guide
      • Diamond Size Guide
  • Moissanite Rings
    • Shop by Style
      • Solitaire
      • Three Stone
      • Hidden Halo
      • Halo
      • View All
    • Shop by Shape
      • Round
      • Oval
      • Cushion
      • Emerald
      • Pear
      • Princess
  • Wedding Rings
  • Diamonds
    • Design your Diamond Ring
      • Start with a Natural Diamond
      • Start with a Lab Diamond
      • Start with a Ring
    • Shop Natural Diamonds
      • Round
      • Oval
      • Cushion
      • Emerald
      • Pear
      • Princess
      • Marquise
    • Shop Lab Diamonds
      • Round
      • Oval
      • Cushion
      • Emerald
      • Pear
      • Princess
      • Marquise
    • Coloured Diamonds
      • Yellow
      • Pink
      • Salt & Pepper
      • Black
      • Blue
      • Red
      • Green
      • View All Colours
  • About
    • Contact Us
      • 087.551.7635
      • WhatsApp Us
      • sales@ralphjacobs.co.za
      • Book a Virtual Appointment
    • About Us
      • Contact Us
      • Customer Reviews
    • Help
      • Help Center
      • Payment Options
      • Shipping
      • Returns
      • Warranty
      • FAQs
    • Blog
  • Country

    Language

  • Login Login
  • Search Search
  • Cart Cart (0)
  • Wedding Rings
Login

Country

Language

  • Design your own Engagement Ring
    Start with a RingStart with a Natural DiamondStart with a Lab DiamondStart with Coloured Diamond
  • Shop by Ring Styles
    SolitaireThree StoneHidden HaloView All
  • Shop by Shape
    RoundOvalCushionEmeraldPearPrincessMarquise
  • Shop by Metal
    9K White Gold9K Yellow Gold14K Rose Gold18K White Gold18K Yellow GoldPlatinum
  • Engagement Ring Guide
    Gemstone GuideMetal GuideRing Size GuideDiamond Size Guide
  • Shop by Style
    SolitaireThree StoneHidden HaloHaloView All
  • Shop by Shape
    RoundOvalCushionEmeraldPearPrincess
  • Design your Diamond Ring
    Start with a Natural DiamondStart with a Lab DiamondStart with a Ring
  • Shop Natural Diamonds
    RoundOvalCushionEmeraldPearPrincessMarquise
  • Shop Lab Diamonds
    RoundOvalCushionEmeraldPearPrincessMarquise
  • Coloured Diamonds
    YellowPinkSalt & PepperBlackBlueRedGreenView All Colours
  • Contact Us
    087.551.7635WhatsApp Ussales@ralphjacobs.co.zaBook a Virtual Appointment
  • About Us
    Contact UsCustomer Reviews
  • Help
    Help CenterPayment OptionsShippingReturnsWarrantyFAQs
  • Blog

Cart

Your cart is empty

Design Your Lab-Grown Diamond Engagement Ring

Forever starts here. Select your Engagement Ring Setting and a Diamond and design a Custom, Made-To-Order Lab Grown Diamond Engagement Ring crafted just for you!

Select from our exquisite array of meticulously curated stones to enhance your ring.
Colour
Price
Shape info-icon
Carat info-icon
Gemstone Type
Price
Carat info-icon
Colour info-icon
Cut info-icon
Clarity info-icon
Intensity info-icon
Polish info-icon
Symmetry info-icon
Fluorescence info-icon
Table % info-icon
Depth % info-icon
L/W Ratio info-icon
Lab

All Results  (0)
Recently Viewed  (0)
This space is waiting for your favorite picks. Browse now to fill it up with treasures!
Recently Viewed  (0)
Compare  (0)
Click the compare icon next to your favorite stones to compare.
Compare  (0)
Sort By:

Need help?

Frequently Asked Questions

What is the difference between a lab-grown diamond and a natural diamond?

Lab-grown diamonds have the same chemical, physical, and optical properties as natural diamonds. The only difference is their origin—lab-grown diamonds are created in controlled environments using advanced technology, whereas natural diamonds form over billions of years beneath the Earth’s surface. Both are 100% real diamonds and cannot be distinguished without specialized equipment.

Can I see the difference between a lab-grown and a natural diamond?

No, to the naked eye, lab-grown diamonds look exactly the same as natural diamonds. Even professional gemologists require specialized equipment to identify them. Lab-grown diamonds exhibit the same brilliance, fire, and durability as natural diamonds.

Will I get a diamond grading report for my lab-grown diamond?

Yes! Just like natural diamonds, lab-grown diamonds are graded by leading gemological laboratories such as the IGI (International Gemological Institute) and GIA (Gemological Institute of America). The grading report includes details about the diamond’s cut, color, clarity, and carat weight, ensuring full transparency about its quality.

Are lab-grown diamonds real diamonds?

Yes! Lab-grown diamonds are 100% real diamonds, not imitations or simulants like cubic zirconia or moissanite. They possess the same hardness (10 on the Mohs scale), sparkle, and durability as natural diamonds.

Can I insure a lab-grown diamond?

Yes, lab-grown diamonds can be insured just like natural diamonds. Most jewelry insurance providers offer coverage based on the diamond’s grading report and purchase value.

Need Help?

  • Customer Support
  • Contact Us
  • Book Virtual Appointment

About Us

  • Blog
  • Customer Reviews

Orders

  • View your Orders
  • Repairs & Sizing
  • Returns or Exchange

Newsletter

Sign up to our newsletter to receive exclusive offers.

Country

Ralph Jacobs a subsidiary of Coscoroba Group Holdings (PTY) LTD © 2025 | Reg No. 2019/101093/07 | VAT: 4340289992 | Registered Credit Provider. NCRCP14398
Customer SUpport | BLOG | Terms & Conditions | Privacy Policy

Our Commitment

earth_300
Ethical Practices

Colored gemstones and diamonds are conflict-free, and our jewellery is ethically created.

checkmark_300
Free Lifetime Warranty

In the unlikely event of a manufacturing defect on one of our items, we promise to repair or replace the piece. Free of charge.

quality-assu
Quality Assurance

Fine jewellery is made to premium standards and with only the highest quality materials because we value the task of creating a treasure for you to cherish your entire life.

truck_300
Free Shipping

We offers free express shipping with Insurance on all orders.

30days_300
Easy 30-Day Returns

If for any reason we have not met your expectations, we would gladly refund, replace or exchange any unworn item(s) received back in our facility within 30 days of receipt.

Learn more
Drop a Hint
Give them a subtle hint that it's time.
product image
3.02 Carat L-Sl1 Radiant Lab Created Diamond
Need Help?
Our jewelry experts are here to help with any product question.
product image
3.02 Carat L-Sl1 Radiant Lab Created Diamond
product image800.691.0592
Share
Share this amazing product with your friends and family.
product image

Or Copy the link to share
https://ralphjacobs.co.za/en-sadc/pages/lab-diamonds product image
How would you like to proceed?
Choose Thisss
Select a Center Stone option
Add To Cart Without Center Stone
cancel
Engrave Your Ring

Add a personal touch with a unique custom engraving.

Engrave Your Ring

Add a personal touch with a unique custom engraving.

Write your message

Please enter text

0/15

Select a font

Add symbols (optional)

cancel
Super Zoom - Actualundefined Image Shown with 40x Magnification.