The images illustrate the design set with a 2 ct centre stone and ring size M. CAD rendered images.
Nikki 18K Yellow Gold Solitaire Engagement Rings 3ct Cushion Lab-Grown Diamond Engagement Ring
R 30,600.00 (complete ring with a lab-grown diamond)
Metal: 18K Yellow Gold
3.01 Carat Cushion Lab-Grown Diamond F · VVS2 · EX polish · IGI LG821649507 · Diamond Details
A complete ring: this setting with the accent stones you choose, set with the lowest-priced lab-grown diamond of that carat (1.00 to 1.09 ct, and so on) in colour D to F, clarity VVS2 or better, polish Excellent or Very Good. The diamond's price is confirmed on the next step. All prices include 15% VAT.
Prefer another diamond? Design this ring with a diamond or gemstone of your choice.
Questions? We are here to help.
Ring Details
A Timeless Solitaire for Your Forever
The Nikki solitaire engagement ring from Ralph Jacobs Jewellers is a graceful and heartfelt choice for those looking to celebrate love with elegance. Designed to captivate both first-time buyers and experienced jewellery connoisseurs, this ring balances classic beauty with modern refinement.
At its centre sits a cushion-shaped stone, which can be selected as a Natural Diamond, Lab-Grown Diamond, Coloured Gemstone, or your own special stone using our diamond ring builder. Held securely by four delicate claws, the centre stone radiates with exceptional brilliance and clarity.
The ring features a smooth, plain band crafted from 18k yellow gold, providing a warm and timeless setting that perfectly complements the diamond engagement ring’s sophisticated silhouette.
Made with pride in South Africa, this ring reflects the highest standards of craftsmanship and ethical sourcing. Designed for durability and daily wear, it honours both your commitment and the legacy of fine jewellery making.
With Ralph Jacobs Jewellers, you receive not only a beautifully crafted engagement ring but also our promise of enduring quality and personalised service, ensuring your ring is as unique as your love story.
Centre Diamond Details
What's Included
- Exclusive Ralph Jacobs Packaging
- Complimentary earrings with qualifying ordersThe earrings included depend on your order value.
- 60-day ring resize labour benefitWe cover our standard resize labour on one eligible resize within 60 days of delivery. Courier, extra metal and plating are not included, and some rings cannot be resized. Resize policy
- Insurance Replacement Estimate
- Diamond Grading Report
Financing & Payment Options
Pay in full by card, EFT or instant EFT, or spread the cost of your ring with one of these options at checkout (subject to the provider's approval):
- HappyPay — pay in 3, or in 2 with zero deposit, interest free. Learn more
- Payflex — split into 4 interest-free payments. Learn more
- PayJustNow — pay in 3 interest-free payments. Learn more
You'll see the instalments for your complete ring, with its centre stone, before you pay.
Delivery
Manufacturing & Delivery
Order by 2 December for priority production. We aim to dispatch before we close on 21 December, but we can’t promise delivery before Christmas. Need your piece by a set date? Tell us before you order and we’ll confirm in writing whether we can make it.
Each piece is handcrafted to order for you. We deliver within 30 working days with a laboratory-grown stone, or 40 working days with a natural diamond or gemstone, which we source and clear through the South African Diamond and Precious Metals Regulator first. Add up to 10 working days outside South Africa. If we are ever going to be late, we tell you first, and you choose a new date or a full refund.
Each piece is handcrafted to order for you. Our workshop is finishing 2026 orders and starts new work on 11 January 2027, so orders placed now are made from 11 January 2027. We deliver within 30 working days of 11 January 2027 with a laboratory-grown stone, moissanite, no stone or your own stone, or 40 working days with a natural diamond or gemstone. Add up to 10 working days outside South Africa. If we are ever going to be late, we tell you first, and you choose a new date or a full refund. Seasonal notice
- Order confirmedWe confirm your design, metal and ring size.
- Stone sourcedWe secure your centre stone.
- Handcrafted Made to order: delivered within 30 working days of payment, not counting our festive closure (21 Dec – 8 Jan).Made from 11 January 2027: delivered within 30 working days (by 19 February 2027). Made to order: delivered within 40 working days of payment, not counting our festive closure (21 Dec – 8 Jan).Made from 11 January 2027: delivered within 40 working days (by 5 March 2027). Made to order: delivered within 30 working days with a laboratory-grown stone, or 40 working days with a natural stone, of payment, not counting our festive closure (21 Dec – 8 Jan).Made from 11 January 2027: delivered within 30 working days (by 19 February 2027) with a laboratory-grown stone, or 40 working days (by 5 March 2027) with a natural stone.
- Checked and dispatchedFinal quality check, then free tracked delivery, signed for on delivery.
13 January 2027
Within 30 working days if you order today, excluding weekends and South African public holidays and our festive closure (21 Dec – 8 Jan). This is the date we commit to. If we are going to miss it, we tell you before then.Within 30 working days of 11 January 2027, when our workshop reopens, excluding weekends and South African public holidays and our festive closure (21 Dec – 8 Jan). This is the date we commit to. If we are going to miss it, we tell you before then.27 January 2027
Within 40 working days if you order today, excluding weekends and South African public holidays and our festive closure (21 Dec – 8 Jan). This is the date we commit to. If we are going to miss it, we tell you before then.Within 40 working days of 11 January 2027, when our workshop reopens, excluding weekends and South African public holidays and our festive closure (21 Dec – 8 Jan). This is the date we commit to. If we are going to miss it, we tell you before then.With a laboratory-grown stone13 January 2027
With a natural stone27 January 2027
We will keep you updated throughout the manufacturing process via email and WhatsApp.
Free Tracked Delivery
Free tracked delivery anywhere in South Africa
Free delivery by tracked courier anywhere in South Africa, with a signature or one-time PIN on delivery. Never left at the door.
Manufacturing Warranty
Every ring is covered by our Warranty and Care Policy, on top of your rights under the Consumer Protection Act. The policy explains what is covered, how to care for your ring and how to make a claim. Need a different size? Our 60-day resize benefit covers the labour.
Warranty and Care Policy · 60-Day Ring Resize Labour Benefit · Jewellery Care Guide
Get Inspired
Your budget, your choice
More ways to own the Nikki Solitaire Engagement Ring
The same setting with three choices of centre stone, so you can find the ring that suits your budget.
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Design your own
Choose any certified diamond
This setting with a certified natural or laboratory-grown diamond, or a gemstone, in the size and grade you choose.
Setting from R 17,520.00
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Pre-set ring
With a laboratory-grown diamond
This setting with a laboratory-grown diamond we've chosen for it, at one complete price, ready to order.
Complete ring from R 22,040.00
- 1 ct laboratory-grown diamondR 22,040.00
- 2 ct laboratory-grown diamondR 26,930.00
- 3 ct laboratory-grown diamondR 30,600.00
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Moissanite ring
With a moissanite centre stone
This setting with a moissanite centre stone: brilliant, and lower in cost than a diamond of the same size.
Complete ring from R 19,403.00
- 7mm · looks like 2.0 ctR 19,403.00
- 8mm · looks like 3.0 ctR 20,254.00
- 9mm · looks like 4.0 ctR 21,651.00
Complete-ring prices use the setting's lowest option. Every ring is made to order in South Africa.
Ralph Jacobs · Shop 6B, Lake Umuzi Waterfront, 1 Kiewiet Street, Secunda, Mpumalanga, 2302 · +27 87 551 7635 · sales@ralphjacobs.co.za