I'm fascinated with this place and just can't get over how lucky we are to have a place like this in Toronto. If you are looking for fresh oysters at amazing prices Diana's is the place to go.
They have the widest selection of all oysters you can imagine, and they sell them individually or in huge boxes by the dozens (I think the lowest quantity for the boxes are 7 dozen).
Staff are very knowledgeable and super friendly. I am definitely not a oyster connoisseur but never did I feel I was spoken down to or was taken for a ride to buy the more expensive oysters.
Highly recommended!