The Harlow18ct Marquise Cut Lab Diamond Tennis Necklace in 9k Gold

The Harlow Necklace redefines the classic tennis silhouette through the distinctive beauty of marquise cut lab grown diamonds. While rooted in timeless design, it introduces modern fluidity and refined elegance. Each marquise diamond is precisely set to create a seamless, continuous line of brilliance. As a result, the necklace moves gracefully with the wearer, reflecting light from multiple angles and delivering exceptional sparkle.

Because of the elongated marquise shape, the diamonds create a flattering, streamlined profile along the neckline. This structured yet fluid arrangement ensures the necklace feels balanced, polished, and luminous. In turn, the clean silhouette transitions effortlessly from day to night. It brings subtle radiance to casual styling, yet it elevates formal evening wear with confident brilliance.

Whether worn alone as a statement or layered with finer chains for added dimension, The Harlow necklace offers versatility without compromise. Its refined structure combines traditional tennis styling with a contemporary edge, ensuring the design feels enduring rather than trend-led.

With its generous diamond weight and elegant proportions, The Harlow marquise diamond tennis necklace delivers bold presence while maintaining sophistication — a piece crafted to be worn, admired, and treasured for years to come.

Features of The Harlow Necklace

• Total diamond weight: approximately 18ct
  
  
• Classic tennis design with marquise cut lab grown diamonds of D-E Colour and VVS Clarity
  
  
• Crafted from 9k yellow, white, or rose gold (Please advise desired metal on the basket page)
  
  
• 16" length sits comfortably on the collarbone
  
  
• Also available in different carat options

If you wish to customise this piece for example changing the design, carat weight or adding coloured  gemstones then get in touch with a member of our team.

Classic tennis design with marquise cut lab grown diamonds


Total diamond carat weight: 18ct

Lab grown diamonds, colour D-E / clarity VVS

16" length but can be made in different options

Crafted in 9k yellow, rose or white gold

All Ethica, jewellery is made to the highest level of quality, and handcrafted especially for every customer.

In Stock Items

To ensure your piece is perfect, please allow up to 10 working days for delivery, especially for customised requests.

Standard Delivery

Approximately 5 weeks.

Need it sooner? Get In Touch.

We understand that sending a significant purchase through the mail can be daunting; that’s why we exclusively use Royal Mail Special Delivery. This service is fully insured and guaranteed for next day arrival once dispatched. For your peace of mind, we’ll provide a personal tracking link so you can follow your jewellery’s journey directly to your door.

We have various payment options available. See further details here on our finance page:

Payment Options

Klarna - Pay in 3
Split your purchases into 3 interest-free monthly payments.

Klarna - Pay in 30
Make a purchase and wait for it to be delivered before paying.

Humm
With Humm you can get up to £3,000 interest free and split your repayments over a 3, 6 or 12 month period.

Layaway
After an initial deposit, our layaway plan allows you to make monthly payments on any purchase. Please call us on 01872 222248 or email us at info@ethicadiamonds.co.uk for details.

Bank Transfer
You can purchase from us using BACS direct bank transfer, if you prefer.

Paypal
You can purchase from us using information from your PayPal account.

Apple Pay
You can purchase from us on our mobile site using your Apple Pay account.

Credit Cards
We accept all major credit cards including Visa, Mastercard and American Express. 

Further Details Here