Ritchies Auctioners is offering a 30.12 loose yellow diamond in its forthcoming sale, and notes it is the largest in its kind to be placed on auction in Canada. The sale slated on June 22, at the Four Seasons Hotel Toronto, will offer over 300 lots of jewellery, timepieces, handbags, decorative art.

The company notes these lots have been picked by it over six months of careful selection, amongst which are two important charcoal drawings by Willem De Kooning.