This is a massive blue British Shorthair bred in Moldova. The Eastern Europeans (and Russians) have a habit of creating extraordinary purebred cats through extreme selective breeding over many years. I have never seen a British Shorthair this size before. No where near as big as this. The lady holding the cat is struggling to manage. The cat looks nonplussed by the whole episode. Big and calm. The color “blue” is the favourite for the British SH. The Russians seem to be particularly fond of the colour. It is actually grey but never mind.

This cat is as big as the biggest Russian Maine Coon (almost). Amazing. Weird and wonderful and no doubt she sells lots of them. I suspect that the cat we see is her main male breeding cat. She sells kittens for 250 euros according to the website (this link may well break over time and if it has I am sorry). This seems cheap. It may be out of date.
The British Shorthair is not normally a large purebred cat. It is mid-range in size. A standard sized cat which makes this photograph all the more extraordinary.
The cattery’s contact information, if you are interested, is: Moldova, Chișinău +373 79069854; +373 022 714080. Chișinău is the capital of Moldova. Note: these details may not work as catteries come and go as they are hobby breeders.
Location
Some more on the popular Brit SH:

Best and worst cat breeds on 10 characteristics as the British Shorthair comes out on top (Infographic)

You want to adopt a cat which is less likely to hunt than normal

Infographic on the British Shorthair

Why are British Shorthairs indoor cats?

What colour are British Shorthair cats?

Hypertrophic cardiomyopathy (HCM) affects 10% of British Shorthairs
Please search using the search box at the top of the site. You are bound to find what you are looking for.
Luscious and sweet smelling. I need more.