Jewellery safes these security safes are suitable for the home and business. It is important to purchase a security safe that is matched to the value it has to protect. These safes are graded by a given cash rating. The cash rating on a safe will help you decide the grade of the safe you need. Insurers typically give up to 10 times the cash rating of the valuables. For example, a £1,000 cash rating would become £10,000 for material contents (Please check this with your insurer first).