The register
The register lists Mia Diamonds Limited in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is Mia Diamonds Limited (company number 08255994), a private limited company incorporated in 2012, 14 years ago. Registered office: 100 Hatton Garden, London, EC1N 8NX, EC1N 8NX. Its filed activity puts it in wholesale.
For a candidate this means one less obstacle: Mia Diamonds Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.