Next, some research to find a good photo of the details of the building, also on its history. It was originally a church, present building is mid-15th century (Renaissance), although Canaletto's painting is dated around 1725. 

Here's a good view of the detailed decoration on the facade, I feel this would translate well into jewellery.

Found a comment from Ruskin (WMC connection!): 

Once an interesting Gothic church of the 14th century, lately defaced, and applied to some of the usual important purposes of the modern Italians. The effect of its ancient facade may partly be guessed at from the art of Canaletto, but only guessed at; Canaletto being less to be trusted for renderings of details, than the rudest and most ignorant painter of the 13th century. 

Pompous and patronising?! But we must be grateful to him ... for WMC.

Link to The Accademia as a church