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7ct diamond tennis necklace
 
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Lab Diamond Tennis Necklace in 18kt White Gold

SKU: LNC0001

AUD $9,500.00 incl. GST

Refined Radiance: Lab Diamond Tennis Necklace in White Gold

Searching for an all-eyes-on-you piece with timeless elegance? This Lab Diamond Tennis Necklace in 18kt white gold delivers a stunning, uniform sparkle across the neckline. Featuring 7 carats of FVS round brilliant cut lab-grown diamonds, each precisely set, this necklace redefines classic luxury with modern values. Whether you’re dressing for a red carpet, wedding, or luxe weekend, it’s designed to elevate every outfit effortlessly.

Features That Shine

Crafted with meticulous detail, every lab-grown diamond is matched for brilliance and set to perfection. As a result, the necklace drapes naturally around the collarbone, offering a blend of flexibility and finesse.

  • Gemstone: Lab-Grown Diamonds
  • Accent Stones: Round Brilliant Cut, FVS Quality
  • Total Carat Weight: 7.00ct
  • Metal: 18kt White Gold

Each diamond sparkles with high colour and clarity, thanks to FVS grading. Moreover, the secure clasp and lightweight construction ensure comfort from day to night. It’s ethical, elegant, and effortlessly wearable.

Styling Tips: From Everyday Glam to Black Tie

Want to layer it? Then try it with a dainty diamond pendant or matching tennis bracelet for coordinated sparkle. Prefer a bold statement? Let it shine solo. This necklace pairs perfectly with our Tennis Bracelets for a refined head-to-toe look.

Need help styling your next event? Book an appointment and let our experts tailor a look that fits your wardrobe and vision. That way, you can shine confidently at any occasion.

See It in Motion on Instagram

Want to see how it sparkles in real life? Then head over to Instagram for styling videos, customer stories, and up-close views that show off every facet. In doing so, you’ll discover endless ways to style this iconic piece.

Why Choose Ernesto Buono and This Necklace?

This lab diamond tennis necklace offers the same stunning brilliance as a natural diamond version, but with a lower environmental impact and ethical sourcing. Set in premium 18kt white gold, it’s a forever piece made to feel as good as it looks.

At Ernesto Buono Fine Jewellery, we blend European craftsmanship with sustainable luxury. Therefore, every piece is designed and finished in our Sydney studio. If you’re ready to elevate your jewellery game with responsible sparkle, book an appointment today.

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AUD $9,500.00 incl. GST

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This item is ready to ship and is eligible for our 30-day returns policy on items purchased online.

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July 10, 2025
Specifications
  • Gemstone: Diamond
  • Shape: Round Brilliant Cut
  • Diamond quantity: 187 Round Cut
  • Total weight: 7 Ct
  • Diamond Colour: F
  • Diamond Clarity: VS
  • 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

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FAQs: Lab Diamond Tennis Necklace

What makes lab-grown diamonds a sustainable choice for a tennis necklace?

Lab-grown diamonds are cultivated using advanced technology that replicates the natural formation process, but without the environmental disruption of mining. Because they are made in controlled conditions, their production consumes fewer natural resources and results in a smaller carbon footprint. So, by choosing a lab diamond tennis necklace, you’re investing in a piece that’s not only beautiful but also better for the planet.

Can I wear this lab diamond tennis necklace every day?

Absolutely. This necklace is designed to combine durability with elegance, making it suitable for daily wear. Thanks to the robust construction and secure clasp, you can enjoy its brilliance from morning to night. While it’s perfect for special occasions, it’s just as effortless when paired with a button-up blouse or cashmere jumper.

How does this lab diamond necklace compare to natural diamond versions?

In terms of appearance, brilliance, and durability, lab-grown diamonds are identical to natural diamonds. They offer the same hardness and sparkle but with a more accessible price point and ethical sourcing. Therefore, this necklace delivers the luxury look you want, backed by values you can feel good about.

Can I customise the length or carat weight of this necklace?

Yes, customisation is available. You can request a shorter choker-style fit or opt for a longer, red carpet-inspired drape. Additionally, we can tailor the carat weight to suit your style or occasion. To explore your options, book an appointment with one of our design experts.

How should I care for my lab diamond tennis necklace?

To keep it looking its best, gently clean your necklace with a soft toothbrush, mild soap, and warm water. Avoid harsh chemicals and always store it in a fabric-lined box to prevent scratching. Regular professional cleanings are also recommended to maintain the white gold’s shine and the diamonds’ brilliance.

Is this necklace suitable as a gift for a milestone event?

Yes, this tennis necklace is a show-stopping choice for anniversaries, birthdays, graduations, or major life moments. With 7ct of lab-grown brilliance and a timeless silhouette, it’s a piece that’s guaranteed to impress. Plus, it comes beautifully presented in Ernesto Buono’s signature packaging—ready for that perfect reveal.

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?

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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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