A rare and exceptional Argyle pink diamond, estimated at $1.1 million to $1.4 million, is a major drawcard at Mossgreen’s Fine Jewels & Watches auction from 6.30pm Tuesday June 16 at 926-930 High Street, Armadale.

Lot 51 of an Argyle Pink Diamond Tender in 2010, the diamond is accompanied by an Argyle certificate and a Gemological Institute of America diamond grading report from that same year, stating the colour is a fancy deep purplish pink and of clarity l1.

Furnishings from the historic Essendon mansion Rosebank will be part of Christian McCann Auctions forthcoming sale from noon on Sunday June 14 at 426 Burnley Street, Richmond.

Originally built in 1892 by Melbourne pioneer entrepreneur Thomas Napier, the mansion – complete with iron lacework return verandahs, balconies and sweeping central staircase – is a well-known local landmark and was a convent for many years before being recently restored to its former glory.

Mossgreen will hold its highest ever value auction when works in its Fine Australian & International Art sale go under the hammer from 6.30pm Tuesday June 2 at 926-930 High Street, Armadale.

With a mid-estimate of more than $4 million, the auction features works from several important private collections including one of Australia’s greatest entrepreneurs Ian Gowrie-Smith who, as a passionate art collector, has been particularly fascinated by Brett Whiteley.

More than 850 lots of oceanic and Asian works of art belonging to 92-year-old Mark Lissauer will go under the hammer from 11am Sunday May 31 at Leonard Joel 333 Malvern Road, South Yarra.

Lissauer has dedicated almost his entire adult life to collecting and researching niche ethnographic material – reflected in this magnificent and unusual collection, regarded in Australia as one of a kind.

A veteran traveller of more than 40 countries – and fluent in five languages – he acquired his first tribal artefact in 1948 while on a business trip to New Guinea.