Leonard Joel Melbourne is currently moving premises. Please refer to each auction catalogue for relevant locations.


Important Jewels

Leonard Joel presents three Important Jewels auctions annually in Sydney, with a focus on international, designer and signed jewellery.

Leonard Joel boasts the largest and longest running auction jewellery marketplace in Australia. Important Jewels leads this category and provides a suite of bespoke services including specialist advice and expertise, valuations and tailored solutions for clients wishing to present an important piece or collection to market, or looking to purchase an investment piece.

The department is led by Hamish Sharma, Australia’s most credentialed auction jewellery expert, having begun at Bonhams & Goodman in Sydney many years ago and most recently completed a decade as the Head of Jewels at Sotheby’s Australia.

In 2021, Leonard Joel sold a magnificent 20.05 carat diamond ring for $1,625,000 IBP, making it the most expensive diamond ever sold at auction in Australia.

*Data based on published results from major Australian auction houses jewellery sales between 1 July 2022 – 30 June 2023


Entries Invited

Now consigning for 2024 auctions

Important Jewels Auction Highlights

Important Jewels Specialists

Hamish Sharma
Head of Important Jewels


Hamish Sharma has over forty years of jewellery industry experience, including the sourcing, presentation, valuation, auction appraisal and promotion of rare and fine jewellery. As a trader in antique jewellery through leading international auction houses in Geneva, London, and New York, Hamish developed a thorough understanding of the auction industry and was appointed Head of Jewels of Sotheby's Australia in 2010.

As Head of Important Jewels at Leonard Joel, Hamish provides a suite of bespoke services for clients wishing to acquire or sell an important piece.

Lauren Boustridge
Senior Specialist and Administrator


Lauren’s experience in the jewellery industry extends from New Zealand to Europe. She has trained and worked with prestigious brands such as Chaumet, Rolex, and Tiffany & Co. She joins Leonard Joel from Webb’s Auctions in New Zealand, bringing a wealth of knowledge and experience to the Important Jewels department.

Lauren holds a Bachelor of Science degree from Victoria University of Wellington and completed her Graduate Gemmologist Diploma at the GIA in London. Her personal jewellery style is varied, and she is often found playfully styling mixed metals, eras, and colours harmoniously.

Now consigning for auction. Submit items for online valuation here or contact us to book an appointment.


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