Custom made jewellery

Why not get your dream jewellery piece created in the heart of Sydney at Diamonds by Design? A custom made jewellery piece is unique and personal. Whether you’re after jewellery with exquisite diamonds or prized coloured gemstones, for yourself or for a loved one, simple or more detailed, award winning designer Karen Lindley has a lifetime of experience to create a piece you will love.

Jewellery restoration

Diamonds by Design specialises in restoring jewellery. We are just as happy to restore an heirloom or generational piece as we are to create a new one. We can use one piece to create multiple pieces, or multiple pieces to create one piece – Whether you have an idea already conceived or need some help designing it, Karen will proudly put her years of experience into creating something special.

Jewellery repair

Whatever the reasons to repair jewellery, it is important to use a company that cares about what it does and will restore and repair the item sympathetically. Choosing the right company with plenty of expertise is crucial as a bad repair detracts from the beauty of the original piece.

Jewellery valuation

A gemmologist from Diamonds by Design can talk you through the process of jewellery valuations in Sydney and provide you with an average estimate of your jewellery’s value.

Modern Jewellery Design & Appraisals in Sydney

At Diamonds by Design we have specialised in the sale of fine jewellery and bespoke jewellery design for almost four decades.

Selling jewellery is not only our specialisation, but also our passion. We value each customer as much as the last, and ensure that every piece is delivered according to the customer’s expectations. Whether you’re searching for the perfect engagement ring or a one-of-a-kind gift for your loved one, you can be assured integrity and satisfaction at Diamonds by Design.

Owner, Karen Lindley offers a custom design service so you can have a piece that is unique and personal to you. You can also choose from some of the finest jewellery pieces from around the world, which are available in our Sydney showroom.

Karen Lindley, Jewellery Designer in Sydney

The Design Process

‘To me your piece of jewellery has to not only feel comfortable, look great and be reasonably priced – it has to pass my benchmark of excellence and look right to my trained eye. Over 40 years of experience as a gemmologist has taught me to trust my judgement and I am seldom wrong!’ – Karen Lindley

Karen Lindley’s passion for jewellery is evident in each and every piece. When you want a specific jewellery piece but you can’t seem to find anything that fits your dream, Karen has the expertise and creativity to bring your dreams to life. When you choose Karen Lindley as your jewellery designer, you can be assured of superior quality and exceptional service.

Why Choose
Diamonds by Design?

Karen Lindley, gemmologist and owner of Diamonds by Design, is an award-winning designer who prides herself in delivering exemplary customer service and stops at nothing to ensure that the customer is 100 per cent satisfied.

We value all our customers and each enquiry is in important to us, which is why we always respond promptly to queries.

Diamonds by Design is happy to offer free advice to clients if they are uncertain exactly what they want.

We value all our customers and each enquiry is in important to us, which is why we always respond promptly to queries.

Your jewellery design will be completed by a qualified, respected and registered gemmologist.

We are a trusted local, family-run business and have worked from the same rooms for the last 35 years.

Every client of Diamonds by Design is guaranteed superior quality and personal service.

To find out more about engagement rings and wedding rings, jewellery design, purchasing diamonds, gems or any of our other services, fill out our online form for free, no-obligation advice.


Find the Inspiration

The best inspiration from Diamonds By Design. Please feel free to explore.

Do you know that fine silk thread is considered necessary for stringing pearls and gemstones? Although it is perfectly all right to string many types of semi-precious beads on one or more strands of flexible steel or nylon wire, in which case you need crimps (which are soft metal beads) and wire protectors for a […]

Oh the frustration of having a watch or a clock that’s not in working order. And it happens all the time! Of course sometimes it’s only a battery that needs to be replaced, although you can’t always do that yourself, but often the watch needs to be cleaned and checked at the same time, and […]

Only five blue diamonds weighing between 10 and 15 carats have ever come to auction. The Blue Moon of Josephine, a cushion-shaped, 12.03-carat, fancy-vivid-blue, internally flawless, was sold by Sotheby’s Geneva in 2015 for US$48.5 million, and the Oppenheimer Blue, a step-cut, 14.62-carat, fancy-vivid-blue, VVS1-clarity stone, was sold by Christie’s Geneva in 2016 for US$57.5 […]

We believe in delivering the best value available, which is why we work closely with our sources to ensure that you get the best diamond, gem or piece of jewellery for your money. Whether our clients are looking for a simple but stunning engagement ring, or a more complex piece, we promise the best value every time.

In the 40 years that our Sydney-based company has been in existence, we have gained a reputation for always conducting business honestly. We pride ourselves on our integrity, which is why we are always careful to ensure that all our jewellery and gems come from traceable sources.

At Diamonds by Design we strive to check the source of all our gemstones and will not purchase stones that do not have provenance that we feel comfortable with. We encourage customers to trade in their gold, precious metals and gemstones or polish them for further wear. We strive to recycle as much as possible and leave a minimal footprint.

Diamonds by Design assists several charities and contributes financially to the Purple Angel Society, of which Karen Lindley Pty Ltd is the Trustee. The Purple Angel Society is a twisters charity which donates to the homeless and destitute, and assists young people to achieve their goals where they are restricted by financial constraints.

Contact Us or Visit

Please fill in this form and we will get back to you as soon as possible.

"Karens work is amazing. She can translate your vague ideas into stunning pieces of jewellery that will become heirlooms"

Barbara King

"Karen helped my fiance to create the perfect engagement ring. Karen was such a pleasure to deal with through the sourcing and creation process, we of course went on to have her make our bands. Karen is very reliable, honest and helpful and I would have no hesitation in recommending her for any custom diamond jewellery."

Simone Hall

Get 25% off for the first time customers

Customer care has always been at the heart of the Sydney-based jewellery experts Diamonds by Designs paradigm.


Find Us On Instagram

This error message is only visible to WordPress admins

Error: No feed found.

Please go to the Instagram Feed settings page to create a feed.

You can never take too much care over the choice of your sunglasses and jewlery.