Insurance underwriters as a rule-of-thumb, value the contents of a condo at 10% of the purchase price. In other words, if you buy a $500,000 condo, the content insurance will be based on content valued at $50,000. Unless you can prove to the insurance company that your content is worth less than that.
The actual premium will then vary on your location; i.e., flood zone, crime rate, which floor you're on etc...
Hope this helps!
Royal Shell Real Estate, Inc.
959 Periwinkle Way
Sanibel, FL 33957 USA