Simplicity Meets Brilliance with This Lab Diamond Necklace

SKU: LDP0006

AUD $3,990.00 incl. GST

Searching for a sleek everyday luxury that doesn’t compromise on sparkle? This Lab Diamond Necklace in luminous 18kt yellow gold features a single, brilliant 1.50ct radiant-cut lab-grown diamond. It’s a minimalist masterpiece designed for the modern woman who values clean lines, effortless elegance, and conscious beauty. Whether you’re dressing up for a night out or polishing your daily look, this piece transitions with you.


Elegant Details: Lab Diamond Necklace Features

Crafted to capture and reflect light from every angle, this necklace radiates refined simplicity. The radiant-cut lab diamond is centre-stage, cradled by four delicate claws that enhance its symmetry and brilliance.

  • Gemstone: 1 Lab-Grown Diamond
  • Cut: Radiant Cut
  • Carat: 1.50ct
  • Clarity & Colour: E-VS2, IGI Certified
  • Metal: 18kt Yellow Gold

Its precision setting allows the diamond to shine brightly, while the warm gold chain adds a rich, glowing contrast. Plus, the ethically crafted lab diamond means you get maximum sparkle with a minimal footprint.


Styling Suggestions: Layer or Shine Solo

This lab diamond necklace pairs beautifully with layered gold chains for a chic, personalised stack. Alternatively, let it stand alone for a clean and contemporary statement. Match it with Yellow Gold Diamond Stud Earrings to complete a timeless look.

Want to experience the piece in person? Book an appointment and try it on with expert styling advice.


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Why Choose This Lab Diamond Necklace and Ernesto Buono?

With this necklace, you’re investing in a high-clarity, high-colour lab diamond that’s every bit as dazzling as its natural counterpart—at a fraction of the environmental impact. Set in luxurious 18kt yellow gold, it’s proof that responsible luxury can still shine brilliantly.

Ernesto Buono Fine Jewellery creates pieces that blend ethics with elegance. Every item is crafted with precision in Sydney, combining Italian artistry with modern values. If you’re ready to embrace refined minimalism with a conscious edge, book your consultation today.


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AUD $3,990.00 incl. GST

Diamond Badge Made to Order
Ships in 17 business days
This item is not eligible for returns or refunds as it is made to order.

Buy Now Pay Later

With

July 30, 2025

Specifications
  • Gemstone: Diamond
  • Shape: Radiant Cut
  • Diamond quantity: 1 Radiant Cut
  • Total weight: 1.50 Ct
  • Diamond Colour: E
  • Diamond Clarity: VS2
  • Certification: IGI Laboratory
  • Type: Necklace
  • Origin: Hand made in Australia

Diamond Care

At Ernesto Buono Jewellery, we appreciate your purchase. To help you get the most out of your design, we extend your experience with a complimentary lifetime cleaning service.

When you visit one of our stores through the years, we can provide your beloved Ernesto Buono jewellery with a professional clean to help you get the most out of your piece.

Our Diamonds

When shopping with Ernesto Buono Jewellery, we only offer the best for our customers, including the quality of materials. We sell both natural and lab-grown diamond jewellery. For the majority of our jewellery, including our engagement rings, we rely on GIA or IGI graded diamonds. We will always clearly state otherwise if we are using anything else.

This doesn’t only guarantee the quality but also the authenticity of the sourced stones. For proof of purchase, our engagement rings come with the relevant certificates.

Free Shipping

All purchases come with complimentary free shipping on orders Australia-wide. Our shipping is secure and insured. We ship items within 2-4 business days depending on stock availability.

All Made-to-Order products will be shipped anywhere from 14-25 days from your order being placed.

Read our full Shipping & Delivery Policy

Secured Payments

We only use secure payment processes so you can shop with peace of mind. We also have finance options available through Zip Pay.

Hand Crafted

Ernesto Buono Jewellery is proud to offer the expertise of our in-house master jewellers.

30-day Guarantee

We will exchange or give your money back with our free 30-day exchange*. We also offer free resizing if required, however, the responsibility of postage associated with resizing lies with the customer.

All items listed on our website are available in standard sizes and diamond specifications. However, should you require a particular size, metal or diamond specification not available, we offer the option to customise and create the item to your requirements.

*In instances where the item specified is unavailable and customisation is required, kindly note that crafting these items to order requires additional time. It’s important to also note that all custom orders are non-refundable due to their personalised nature. We are unable to accept returns or issue refunds on custom-made-to-order items.

Read our full Returns & Refund policy

Fast, Free Shipping Fast, Free Shipping
Secure & Insured | 30 Day Returns For Online Purchases*
Order now and your package will ship in 2-4 business days*.
* Depending on customisation required and stock availability.
Read our full terms and condtions.

FAQs: Everything You Need to Know About the Lab Diamond Necklace

What is a lab-grown diamond, and how does it differ from a natural one?

A lab-grown diamond is created using advanced technology that replicates the natural diamond-growing process. Chemically and optically identical to natural diamonds, lab diamonds offer the same brilliance and durability. However, they are more sustainable and often come at a better price point. If you’re seeking ethical luxury with zero compromise on sparkle, this is the ideal choice.

Is the diamond in this necklace certified?

Yes, the radiant-cut diamond featured in this necklace is IGI certified, meaning it has been evaluated for quality, colour, and clarity by the International Gemological Institute. With an E colour and VS2 clarity, it sits at the high end of the quality spectrum, promising exceptional brilliance and a clean, crisp sparkle.

 

Can I wear this necklace every day?

Absolutely! This piece is designed for everyday wear. The 18kt yellow gold is not only durable but also hypoallergenic. Its minimalist setting ensures the diamond remains secure while offering comfort and elegance throughout your day. Just be sure to remove it during activities involving harsh chemicals or intense physical movement to maintain its condition.

Can I customise the chain length or diamond shape?

Yes, Ernesto Buono Fine Jewellery offers customisation. You can request a different chain length or even choose another diamond shape like oval, emerald, or round. If you’re after something unique, book an appointment to explore custom options with our in-house team.

How do I clean and maintain this lab diamond necklace?

To keep your necklace shining, clean it regularly using warm water, mild dish soap, and a soft toothbrush. Gently brush the diamond and metal, then rinse and pat dry with a lint-free cloth. For deep cleans and checkups, visit our Sydney boutique for professional care and advice.

Is this necklace suitable for gifting?

Definitely. This lab diamond necklace makes a thoughtful and luxurious gift for birthdays, anniversaries, graduations, or just because. With its elegant presentation and sustainable origin, it’s a gift that carries meaning and modern charm. Plus, it arrives beautifully packaged and ready to impress.

600+ 5 Star
Google Reviews

600+ 5 Star
Google Reviews

Free Secure &
Insured Shipping

Free Secure &
Insured Shipping

Free Ring
Resizing

Free Ring
Resizing

Life Time Cleaning & After Care Support

Life Time Cleaning
& After Care Support

Live Customer Support
Email, Phone or Chat

Live Customer Support
Email, Phone or Chat

Zip Money
& Finance Options

Zip Money
& Finance Options

Can’t find what you like? Did you know that you can customise your own engagement ring or send us photo of what you like and we can make it for you?

Meet our Jewellers and Designers

Meet our team

  • Ernesto

    Ernesto

    CEO Jewellery Designer

  • Angelina

    Angelina

    Store Manager

  • Maria

    Maria

    Diamonds Specialist

  • Steff

    Steff

    Jewellery Designer

  • Silvana

    Silvana

    Jewellery Designer

  • Hind

    Hind

    Jewellery Designer

Google Map Terrain

Very smooth and easy experience dealing with Ernesto. He melted my old gold and custom made me a necklace that turned out exactly how I wanted it and to great quality. Highly recommend.

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- Diab Finianos

The best and most honest jeweler in Sydney , Ernesto is a pleasure to deal with and so are all his staff. I highly recommend Ernesto and his team for quality service and jewellery.

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- Steve

Ernesto is the best person to deal with. He will assist and help you with anything possible and he is very easy going with the best prices and always looks after his clients. Highly recommend.

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- Matthew Khouchaba

Ernesto and Maria have always provided me with the best service and quality jewelry for years. Highly recommend, best in the business.

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- Jeanpaul Maugeri

Always a pleasure to deal with Maria and Ernesto bought both the wedding ring and band from here great quality and great deal thankyou again

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- Sam and Sarah

I have to say best dicision I ever made. Ernesto was so helpful and if I could give him more than five stars I would.

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- Norman Ghannoum

Ernesto Buono Fine Jewellery

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