Professional Diamond Buyers Adelaide

Looking to sell diamonds or diamond jewellery in Adelaide?

Gildex provides professional assessments and private consultations for loose natural diamonds, engagement rings and fine diamond jewellery through our Adelaide CBD office and secure Australia-wide mail-in service.

The McCabe family has been involved in the jewellery industry in Adelaide since the 1930s. Across four generations, that experience has included estate jewellery, fine jewellery, watches, diamonds and the second-hand jewellery market.

At Gildex, we believe selling diamond jewellery should feel professional, informed and discreet.

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We Selectively Purchase Diamonds & Fine Diamond Jewellery

 

Gildex selectively purchases:

• Loose natural diamonds

• GIA certified diamonds

• Diamond engagement rings

• Fine diamond jewellery

• Estate diamond jewellery

• Antique and vintage diamond pieces

• Designer and branded jewellery

• Larger high-quality natural diamonds

 

We are particularly interested in larger natural diamonds above 1.00 carat, especially where accompanied by GIA certification.

While we assess a broad range of diamond jewellery, not all pieces will suit our current buying requirements.

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Understanding The Diamond Market

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The secondary diamond market can vary significantly depending on:

• certification

• carat weight

• colour and clarity

• cut quality

• jewellery design

• brand

• overall market demand

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Many clients are surprised to learn that two seemingly similar diamonds can carry vastly different market values.

Our role is to professionally assess each piece individually and provide clear, realistic guidance throughout the process.

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Engagement Rings, Estate Jewellery & Inherited Pieces

We regularly assist clients looking to sell:

• engagement rings

• inherited diamond jewellery

• estate collections

• unworn fine jewellery

• vintage and antique diamond pieces

Some jewellery may hold value beyond the diamond itself, particularly where craftsmanship, design, rarity or brand demand are involved.

Professional Assessment & Private Appointments

 

Appointments are conducted privately from our Adelaide CBD buying office.

For interstate and regional clients, Gildex also offers secure Australia-wide mail-in assessments using insured and tracked shipping.

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Why Clients Choose Gildex

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• Fourth-generation Adelaide jewellery family

• Professional and discreet consultations

• Modern jewellery testing technology

• Experience with estate and fine jewellery

• Secure Australia-wide service

• Instant obligation-free offers

• Same-day payment available on accepted offers

Looking to Sell Diamonds in Adelaide?

 

Book a private appointment or request a secure mail-in assessment through the Gildex homepage.