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Blue cabochon and diamond ring shown in close detail.

Jewellery services

Specialist Jewellery Services

Kooyong assists with jewellery design, remodelling, repairs, resizing, documentation, laboratory reports, private-sale advice and secure collection or delivery arrangements. Depending on the item and work required, services may be provided directly or coordinated through trusted specialists.

Practical support

Services that support the sale journey.

Jewellery services support auction, valuation and estate pathways with practical advice, preparation, documentation and handover.

Kooyong can discuss cataloguing, private sale advice, collection management, documentation, inspection, repair, remodelling, secure transport or specialist referrals.

Each recommendation depends on the item, the evidence available, the purpose of the enquiry and the most appropriate path forward.

Service areas

Support around valuation, sale and handover.

The exact process depends on the piece, the purpose of the enquiry and whether the best outcome is auction, private sale, valuation or further specialist advice.

Cataloguing support

Research, description, photography direction and presentation context for suitable auction or sale items.

Private sale advice

Alternative sales guidance where a direct or enquiry-led sale may be more appropriate than auction.

Documentation review

Practical review of certificates, receipts, prior valuations, provenance, hallmarks and supporting records.

Collection sorting

Structured help to separate significant pieces from general, low-value or non-sale material.

Jewellery service guidance

Guidance around design, remodelling, resizing, repair, certification and supporting documentation.

Collection and logistics

Clear arrangements for inspection, release, secure collection and delivery, subject to item and destination.

Discuss an item or collection.

Contact Kooyong